Create run, wanting to be outside (5)
I believe the answer is:
wreak
'create' is the definition.
(wreaking is a kind of creating)
'run wanting to be outside' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'wanting' becomes 'weak'.
'to be outside' is an insertion indicator.
'r' inserted into 'weak' is 'WREAK'.
(Other definitions for wreak that I've seen before include "Inflict, bring about" , "Cause (havoc, say) to happen as a consequence" .)