Dry debate about a toy (5,4)
I believe the answer is:
teddy bear
'a toy' is the definition.
(I know that teddy bear is a type of toy)
'dry debate about' is the wordplay.
'about' indicates anagramming the letters.
'dry'+'debate'='drydebate'
'drydebate' is an anagram of 'TEDDY BEAR'.
(Other definitions for teddy bear that I've seen before include "cling to this for comfort?" , "Soft toy" , "Stuffed toy" , "Cuddly toy named after a US president" , "what kid may be allowed at bedtime" .)