Embed in deposit (5)
I believe the answer is:
inlay
'embed' is the definition.
(I've seen this before)
'in deposit' is the wordplay.
'deposit' becomes 'lay' (deposit can mean to lay down or place).
'in'+'lay'='INLAY'
(Other definitions for inlay that I've seen before include "eg Marquetry" , "Decorate by embedding" , "Inserted decoration" , "Filling shaped to fit a tooth cavity" , "work of a craftsman" .)