One getting stuck into my dough (5)
I believe the answer is:
money
'dough' is the definition.
(I know that dough can be written as money)
'one getting stuck into my' is the wordplay.
'getting stuck into' is an insertion indicator.
'one' placed within 'my' is 'MONEY'.
(Other definitions for money that I've seen before include "Lucre" , "Cash, notes" , "'A fool and his.....are soon parted'" , "Coins, banknotes, etc" , "Currency; wealth" .)