Ken Cook, wok legend! (9)
I believe the answer is:
knowledge
'ken' is the definition.
(thesaurus)
'cook wok legend' is the wordplay.
'cook' indicates anagramming the letters.
'wok'+'legend'='woklegend'
'woklegend' with letters rearranged gives 'KNOWLEDGE'.
(Other definitions for knowledge that I've seen before include "Understanding" , "Information, learning or enlightenment" , "Erudition - ability" , "a small amount is risky" , "Info" .)