Biscuit you'll get a lot out of? (7,6)
I believe the answer is:
fortune cookie
'biscuit' is the definition.
(fortune cookie is a kind of biscuit)
'a lot out of?' is the wordplay.
I cannot quite understand how this works, but
'lot' could be 'fortune' (synonyms) and 'fortune' is found within the answer.
'of?' could be 'o' and 'o' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'you'll get' is the link.
Can you help me to learn more?
(Other definitions for fortune cookie that I've seen before include "Predictive biscuit of Chinese restaurants" , "Pastry containing maxim" , "Small biscuit containing a prediction" , "Biscuit containing a prophecy" , "Biscuit containing a message" .)