Handle clumsily in scrum (4)
I believe the answer is:
maul
This clue is a double definition.
'handle clumsily' is the first definition.
(I've seen this before)
'scrum' is the second definition.
(I've seen this before)
'in' is the link.
(Other definitions for maul that I've seen before include "Tear at a person or animal" , "Manhandle" , "Handle roughly, bruise" , "Savage" , "Injure badly by beating" .)