Hide in rough bar within sixty minutes (7)
I believe the answer is:
harbour
'hide' is the definition.
(harbouring is a kind of hiding)
'rough bar within sixty minutes' is the wordplay.
'rough' is an anagram indicator.
'within' means one lot of letters goes inside another.
'sixty minutes' becomes 'hour' (I've seen this before).
'bar' is an anagram of 'arb'.
'arb' going inside 'hour' is 'HARBOUR'.
'in' acts as a link.
(Other definitions for harbour that I've seen before include "mole" , "Place of refuge" , "Safe mooring for ships" , "Shelter for shipping" , "Hide - entertain - port" .)