Indulges lettuce collections (7)
I believe the answer is:
cossets
'indulges' is the definition.
('cosset' can be a synonym of 'indulge')
'lettuce collections' is the wordplay.
'lettuce' becomes 'cos' (cos is a kind of lettuce).
'collections' becomes 'sets' (set is a kind of collection).
'cos'+'sets'='COSSETS'
(Other definitions for cossets that I've seen before include "Pampers" , "Overprotects" , "Protects" , "Treats with excessive indulgence" .)