Times love to put in derrire that's voluptuous (5)
I believe the answer is:
buxom
'that's voluptuous' is the definition.
(synonyms)
'times love to put in derrire' is the wordplay.
'times' becomes 'x' (x resembles the multiplication or times sign).
'love' becomes 'o' (love means zero in tennis).
'to put in' is an insertion indicator.
'derrire' becomes 'bum' (I can't explain this - if you can you should give a lot more credence to this answer).
'x'+'o'='xo'
'xo' placed within 'bum' is 'BUXOM'.
Can you help me to learn more?
(Other definitions for buxom that I've seen before include "Large-breasted" , "Full-bosomed" , "(Of a woman) curvaceous" , "Jolly" , "Pleasingly plump" .)