8/12        Transitive writer's output, maybe kept by family, backed to be independent (5,3,7)

 9  17 16 man not about to deceive... (6)

10 ...or one with many parts ironed out (2,4)

11 Glad to cavort in fairy's charity occasion (7)

12 See 8

14 Italian runner, one replacing lead in Bond film (4)

16 Birds right to enter early service (7)

18 Writer, a failure left carrying dunce's cap in the same direction (6)

20 Weapon that gives you energy and go (4)

21 Delay Honey during walk back (4,3)

24 For roofer a fixer gets to climb aboard, collecting fine (4-3)

26 Predominantly intellectual in class (6)

27 Cryptic Sue is after a Victorian (6)

28 It's hard joining panel open to tax (8)

 2  Ship having sailed, living as a student, so blue (6)

 3  Parts repaired in unique barrels lifted without balance? (3,4,3)

 4  Medic following workhorse? (7)

 5  Moon overhead, but not full (4)

 6  Ancillary fashion chain needs help (8)

 7  Being encountered by traveller, hold July (when the name's regularly chosen) (9)

13 Comedy Club extremely uplifting during air journeys... (10)

15 ...when spirits are low (5,4)

17 Politicians, stature reduced rising (what did you say - like a chocolate fireguard?) (3,5)

19 How long does it take a dictator to get on a pick-up truck? (1,6)

22 Under a thousand dollars to castrate bank-robber? (6)

23 Frame sleuth? You will fail, in the end (4)

25 Husbands at the front, ready for service, thank God! (4)