Snag, hitch (7)
I believe the answer is:
problem
I believe this clue is a double definition.
'snag' is the first definition.
(I've seen this before)
'hitch' is the second definition.
(I've seen this before)
(Other definitions for problem that I've seen before include "Puzzle - difficulty" , "Difficult matter to solve" , "One requiring solution" , "Trouble" , "A matter hard to solve" .)