Get a little sweet (7)
I believe the answer is:
winsome
'sweet' is the definition.
(thesaurus)
'get a little' is the wordplay.
'get' becomes 'win' (winning is a kind of getting).
'a little' becomes 'some' (I've seen this before).
'win'+'some'='WINSOME'
(Other definitions for winsome that I've seen before include "Attractive - I'm so new (anag)" , "Attractive and fresh" , "Agreeable" , "Charming - sweet" , "Charming, engaging" .)