Boy caught by wolf, one's stuffed (7)
I believe the answer is:
roulade
'one's stuffed' is the definition.
(a roulade is stuffed with a filling)
'boy caught by wolf' is the wordplay.
'boy' becomes 'lad' (lad is a kind of boy).
'caught by' means one lot of letters goes inside another.
'wolf' becomes 'roue' (both can mean a womanizer or rake).
'lad' placed within 'roue' is 'ROULADE'.
(Other definitions for roulade that I've seen before include "Meat, sponge, etc spread with filling and rolled up" , "Food that's filled" , "Meat dish with filling" , "Melodic embellishment" , "Slice of meat rolled round a filling and cooked" .)