Tom or Sam (5)
I believe the answer is:
uncle
'tom or sam' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for uncle that I've seen before include "Pawnbroker's nickname" , "Family relative" , "For example, Tom Cobbleigh" , "Pawnbroker (sl.)" , "A parent's brother" .)