Takes no action with models that are drunk (4,5)
I believe the answer is:
sits tight
'takes no action' is the definition.
(I've seen this in another clue)
'with models that are drunk' is the wordplay.
'with' is a charade indicator (letters next to each other).
'models' becomes 'sits' ('sit' can be a synonym of 'model').
'that are drunk' becomes 'tight' (slang term).
'sits' next to 'tight' is 'SITS TIGHT'.
(Other definitions for sits tight that I've seen before include "is waiting patiently" , "Maintains a position" .)