Order a c-cooker (7)
I believe the answer is:
arrange
'order' is the definition.
(synonyms)
'a c-cooker' is the wordplay.
'c-cooker' becomes 'rrange' ('range' said with a stutter like 'cooker' was; I've seen this before).
'a'+'rrange'='ARRANGE'
(Other definitions for arrange that I've seen before include "Bring about or put in order" , "Fix" , "Dispose" , "Set in order" , "position" .)