Daisy enters city in wind (8)
I believe the answer is:
easterly
'wind' is the definition.
(I know that easterly is a type of wind)
'daisy enters city' is the wordplay.
'daisy' becomes 'aster' (I've seen this before).
'enters' is an insertion indicator.
'city' becomes 'ely' (Ely is a city in Cambridgeshire).
'aster' placed inside 'ely' is 'EASTERLY'.
'in' acts as a link.
(Other definitions for easterly that I've seen before include "Invariably cold wind" , "The sort of wind that brings cold air to this country" , "Of wind, blowing from direction of rising sun" , "large blow" , "A wind blowing towards the west" .)