17d It is given as incentive to buy lavish present (4.4) F---/----
18d One on a spree had sweetened curds at all times (9) J-------R
23a Old charge about utensils' development (9) ------i-n
29a Well-bred fellow takes fish (7) -----L
31a Two men taking a lady (9) ------I-A
(The initial letters of the above 'across' clues depend on the answer to 17d)
I'm stuck, been looking at them too long. Thanks for your help.
Brilliant, nearly there TheWinner,
I can't think of 23a except Extension don't know why though.
Ooops I've missed one clue out :
24d Long to include crib that's inflammatory (4.3) --N-/E-E