5  Minimum age before taste of legal drink (7)

 9  Passing broken-down ferries (3)

10 One gripping schoolbook, wherein attempt to describe noun (11)

11 Walk away from second unwelcome visitor on site (5)

12 Worked out, there’s quoted amount one short of 1a (9)

13 Cook too much, no more! Starts to dine out (6)

15 Ran across ice, or slid fast (8)

18 Affecting all parts, so we’re told, why stop inside? (8)

20 Sensual layer from behind (6)

23 Inactive person, half in love, needs to get fit (9)

24 Boss added to Noddy's core character with Big Ears (5)

26 Starts car, heading off to station roughly around one (11)

27/2 On sandy ground all over Spain perhaps (3,3,2)

28 Youngsters eat and go without finishing, shall we? (7)

29 Tyres burst! Punctures? Radler's unexplained incident (7)

 1  Queen Fancy is set on following posh posers (9)

 2  See 27 Across

 3  Periodically it bursts, already being scrapped (7)

 4  Number go right to left (6)

 5  Rot on table provoked alarm (8)

 6  Rectify it, even a lack of experience (7)

 7  Hospital photograph idiot naked with cloth round butt (9)

 8  Learner put mileage on, clipping bottom of car bumper (5)

14 Good-humoured gag I put together with 27 2 (4-5)

16 Term in France where designing without caring (9)

17 Ideas about clothing - put something on - getting complaint (8)

19 Lace bald gentleman's drink (7)

21 Ultimately uninhibited individuals on vacation, exhibiting crown jewels outside (7)

22 Cripple in boarded up old room (6)

23 Say nothing, gripped? (5)

25 Honour traps 27 in 27 2? (5)