Shade diminishing as wife moves south (6)
I believe the answer is:
awning
'shade' is the definition.
(thesaurus)
'diminishing as wife moves south' is the wordplay.
I cannot really understand how this works, but
'as' could be 'in' (I've seen this in other clues) and 'in' is found within the answer.
'wife' could be 'w' (abbreviation) and 'w' is located in the answer.
The remaining letters 'ang' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for awning that I've seen before include "Canopy for shelter from rain or sun" , "Shop front cover" , "Shop's sun shade" , "Protection" , "Light protective roof" .)