cryptic crossword

ACROSS

1 Measure period covered by recent broadcast (10) 6 Casually grand, that's you! (4) 9 Darned watch includes week and day (5)

10 Put off work, upset by papa coming in smashed (9) 12 Parking delayed Parisian at the top of the hill? (7)

13 Go over chapter by nonsensical writer (5) 15 Brings in drink, singular -- the setter's first (7) 17 Military forces from Germany and Spain cross swords (7) 19 After travelling, a driver did it? (7)

21 Bill's memoir? (7) 22 Something from river put in ring? (5)

24 Mark's secure attic she entered occasionally (7) 27 Entering confession (9) 28 Liable to drizzle in amongst bit of sunshine? (5)

29 One could be right -- it's fiftyfifty (4)

30 Recalled to be given a new appendage? (10)

DOWN

1 Players thrown out (4) 2 Snapper we employed producing this? (9)

3 It's used on radio, as I state (5) 4 2, say? (7)

5 Son, given a reminder to trail about, got free (7)

7 So, here's where we may see this hyphen: 'centrally-heated' (5)

8 Left-wing new university reflected Welsh town below (10)

11 Calm wide sea (7)

14 Page inserted in Paradise Lost -- second goes missing (10) 16 Shocks rebels (7)

18 Worse row follows twisted article that's horrid! (9) 20 Undeterred by river, welcoming suggestions to go over (7)

21 Settle on Scottish isle, say, to go climbing (7)

23 With central heating left off, fortunate to be prepared (5) 25 Beat broth to liquefy (5) 26 Kept watch on, as I had to be picked up (4)