Wystan Hugh leaves university for Arabian city (4)
I believe the answer is:
aden
'arabian city' is the definition.
(I've seen this in another clue)
'wystan hugh leaves university' is the wordplay.
'wystan hugh' becomes 'auden' (I've seen this in another clue).
'leaves' indicates named letters should be taken away.
'university' becomes 'u' (abbreviation for university).
'auden' with 'u' taken out is 'ADEN'.
'for' is the link.
(Other definitions for aden that I've seen before include "Commercial capital of Yemen" , "Yemeni port" , "Red Sea port" , "Yemeni gulf" , "Strange Dane to be in the Yemen" .)