I've completed majority of crossword - just stuck on a few... Any help most appreciated!
23a - Blow up the extraterrestrial's changing area (6) A-R---
24a - Screwed up dentists beginning to get around teething problem (9) (Would the answer be TIGHTENED? It fits but I'm not sure that it answers the clue?)
48a - Old timers found amongst the berries (6) E----S
3d - Adjust your torso to settle down with some bird (5) r-o--
10d - Norman's heading off in three year cycle to do nothing (7) I--R-I-
29d - One who gives out rises into a turn (6) I----R
40d - Cried out for deal about chlorine (6) C-----
Thanks everyone for the answers - but especially the breakdown - it really helps to see how you came to the answer - it all seems so much clearer now!!