Cook put a meal in to cook (10)
I believe the answer is:
manipulate
'cook' is the definition.
(I know that cook can be written as manipulate)
'cook put a meal in' is the wordplay.
'cook' indicates an anagram.
'put'+'a'+'meal'+'in'='putamealin'
'putamealin' with letters rearranged gives 'MANIPULATE'.
'to' is the link.
(Other definitions for manipulate that I've seen before include "Handle, manoeuvre" , "Influence someone deviously" , "Use" , "Doctor" .)