Some food for partner to bolt (3)
I believe the answer is:
nut
'some food' is the definition.
(type of food)
'partner to bolt' is the wordplay.
'partner' becomes 'n'.
'to bolt' becomes 'ut' (I can't justify this - if you can you should believe this answer much more).
'n'+'ut'='NUT'
'for' is the link.
Can you help me to learn more?
(Other definitions for nut that I've seen before include "Fruit with hard shell" , "Almond, for example" , "something turned when making fast > food" , "'Almond or cashew, say (3)'" , "Fruit with hard case" .)