Golf tournament, and one of its locations to get snack (4,8)
I believe the answer is:
open sandwich
'snack' is the definition.
(I know that open sandwich is a type of snack)
'golf tournament and one of' is the wordplay.
'golf tournament' becomes 'open' (the Open is a golf tournament).
'and' is a charade indicator (letters next to each other).
'one of' becomes 'sandwich' (I can't explain this - if you can you should give a lot more credence to this answer).
'open'+'sandwich'='OPEN SANDWICH'
'its locations to get' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
(Another definition for open sandwich that I've seen is " Something to eat".)