Run in and steal (5)
I believe the answer is:
pinch
This clue is a double definition.
'run in' is the first definition.
(thesaurus)
'steal' is the second definition.
(pinching is a kind of stealing)
'and' acts as a link.
(Other definitions for pinch that I've seen before include "Tweak" , "Grip tightly; steal (colloq.)" , "Squeeze painfully" , "Nip - purloin" , "Steal (colloq.); one felt by the poor" .)