Dip in the cream pot (10)
I believe the answer is:
pickpocket
'dip' is the definition.
('pickpocket' can be a synonym of 'dip')
'the cream pot' is the wordplay.
'the cream' becomes 'pick' ('pick' can be a synonym of 'cream').
'pot' becomes 'pocket' (I've seen this before**).
'pick'+'pocket'='PICKPOCKET'
'in' is the link.
(Other definitions for pickpocket that I've seen before include "Dip" , "Cutpurse" , "Thief working in public places" , "Artful Dodger?" , "Tea leaf" .)