Cold wind enveloping plant in cathedral city (8)
I believe the answer is:
easterly
'cold wind' is the definition.
'easterly' can be an answer for 'wind' (easterly is a kind of wind). I'm not sure about the 'cold' bit.
'enveloping plant in cathedral city' is the wordplay.
'enveloping plant' becomes 'aster' (aster is a kind of plant. I am not sure about the 'enveloping' bit.).
'in' indicates putting letters inside.
'cathedral city' becomes 'Ely' (English city with a cathedral).
'aster' placed inside 'ely' is 'EASTERLY'.
Can you help me to learn more?
(Other definitions for easterly that I've seen before include "large blow" , "The sort of wind that brings cold air to this country" , "Year's let (anag) - direction of 15" , "Wind to westward" , "Invariably cold wind" .)