Cook, legend with wok, displaying practical skill (9)
I believe the answer is:
knowledge
'practical skill' is the definition.
(I've seen this before)
'cook legend with wok' is the wordplay.
'cook' indicates anagramming the letters.
'with' means one lot of letters go next to another.
'legend'+'wok'='legendwok'
'legendwok' with letters rearranged gives 'KNOWLEDGE'.
'displaying' is the link.
(Other definitions for knowledge that I've seen before include "Info" , "Understanding" , "Cognition, wisdom" , "An organised body of information" , "Learning, science" .)