No remorse, ditching University bridge player (5)
I believe the answer is:
north
'bridge player' is the definition.
(cardinal directions represent the bridge players)
'no remorse ditching university' is the wordplay.
'remorse' becomes 'ruth' (opposite of ruthlessness).
'ditching' suggests deleting specific letters.
'university' becomes 'u' (abbreviation for university).
'ruth' with 'u' taken out is 'rth'.
'no'+'rth'='NORTH'
(Other definitions for north that I've seen before include "Thorn (anag.)" , "One of four bridge players" , "A quarter" , "Direction of Edinburgh from Cardiff" , "Compass bearing" .)