Fix old man up after time in bar
I believe the answer is:
taproom
'bar' is the definition.
('taproom' can be a synonym of 'bar')
'fix old man up after time' is the subsidiary indication.
'fix' becomes 'moor' (mooring is a kind of fixing**).
'old man' becomes 'pa' ('pa' can be a synonym of 'old man').
'up' is a reversal indicator (in down clue: letters go upwards).
'after' means one lot of letters go next to another.
'time' becomes 't'.
'moor'+'pa'='moorpa'
'moorpa' reversed gives 'aproom'.
'aproom' put after 't' is 'taproom'.
'in' is the link.
(Other definitions for taproom that I've seen before include "Hotel bar" , "liquor shop" , "Public bar" , "Type of bar" , "Source of beer" .)