Go and get chef's special -- about time! (5)
I believe the answer is:
fetch
'go and get' is the definition.
(thesaurus)
'chef's special about time' is the wordplay.
'special' is an anagram indicator.
'about' indicates putting letters inside.
'time' becomes 't'.
'chef' with letters rearranged gives 'fech'.
'fech' enclosing 't' is 'FETCH'.
(Other definitions for fetch that I've seen before include "Go and get back, like dog with stick" , "Command to a gun dog" , "Go and bring back" , "Order to dog to retrieve thrown stick" , "Collect" .)