Cryptic Crossword 1-12

Theme: All thematic clue answers are terms in mathematics which also have non-math related meanings

Across

6 It’s fashionable breaking tea saucer? (5)

China, in (fashionable), breaking (insertion), cha (tea), saucer (def)

7 Scrap French enterprise (8)

Fraction, scrap (def), Fr (French), action (enterprise)

10 Critic at sea with keyboard instrument (7)

Clavier, caviler (critic), at sea (anagram), keyboard instrument (def)

11 Put up commander with col. (7)

Compass, put up (def), com (commander), pass (col)

12 Number 1, tide turned by newsmagazine (7)

Edition, turned (reversal of), No (number) + I (one) + tide, newsmagezine (def)

13 Mercy home? (7)

Quarter, DD

14 Thematic? me? possibly. The answers to clues 7a, 11a, 13a, 21a, 23a, 27a are terms used in this field of study (11)

Mathematics, possibly (anagram of) thematic + Sam (me), rest is def

19 Rapture say its French perversion (7)

Ecstasy, rapture (def), perversion (anagram of) say + cest (It’s in French)

21 Protest forever? That's common. (7)

Average, aver (protest), age (forever), common (def)

23 Affair for leader? (7)

Product, affair (def), pro (for), duct (leader)

25 Women snap at, or men take to booze, to vent internal anguish (7)

Torment, internal (hidden), anguish (def), rest is fodder

26 Omission of French and allow no one to return (8)

Deletion, omission (def), de (of in French), let (allow), i (one), return (reversal) of no + i

27 One French individual working for confederacy (5)

Union, un (one in French), I (individual), on (working), confederacy (def)

Down

1 One in giant doubt about light yet strong metal (8)

Titanium, i (one), in (insertion), titan (giant), um (doubt), light yet strong metal (def)

2 Don't like it? Swap it, I don't mind providing deer (6)

Wapiti, providing (hidden), deer (def), rest is fodder

3 Showing audacity, Jeff, Ron, Tery and Joe blew the whistle against their dictatorial boss (10)

Effrontery, showing (hidden), audacity (def), rest is fodder

4 New trend for G-man (4)

Narc, n (new), arc (trend), G-man (def)

5 Degree in punk and metal? (6)

Cobalt, BA (degree), in (insertion), colt (punk), metal (def)

6 Caltech dropping student work for prestige (6)

Cachet, dropping (deletion of) L (student), work (anagram of) Caltech - L, prestige (def)

8 I nap upside down after a peg. Besides that, I am a drum? (7)

Timpani, upside down (reversal of) I + nap, after (position), T (peg), I’m (I am), drum (def)

9 American primitive measure on loansharking (5)

Usury, US (American), ur (primitive), y (measure), loansharking (def)

13 Detention for uninitiated water operated prong (10)

Quarantine, detention (def), aqua (water), uninitiated (delete 1^st letter), ran (operated), tine (prong)

15 Slander from the French in a way (7)

Traduce, slander (def), du (from the in French), in (insertion), trace (way)

16 Cheap crack for BBQ fare (8)

Sparerib, spare (cheap), rib (crack), BBQ fare (def)

17 Secretary with no pace? (5)

Tempo, temp (secretary), o (no), pace (def)

18 Subatomic particle from atom particle collider and not pellet from BB gun round (6)

Lepton, subatomic particle (def), from (hidden), round (reversal), rest is fodder

20 Lavish exhibition for woman who lost her husband (6)

Shower, lavish (def), show (exhibition), her (woman), lost (deletion of), h (husband)

22 Sad, not crossed after angry reprimand (6)

Earful, tearful (sad), not (deletion of) t (crossed), angry reprimand (def)

24 Orderly word related to the theme of this puzzle (4)

Trig, DD as in orderly and as in trigonometry