Woman wearing a grand coat (6)
I believe the answer is:
anorak
'coat' is the definition.
(anorak is a kind of coat)
'woman wearing a grand' is the wordplay.
'woman' becomes 'nora' (**).
'wearing' indicates putting letters inside.
'grand' becomes 'k' ('K' can be a synonym of 'grand').
'a'+'k'='ak'
'nora' going into 'ak' is 'ANORAK'.
(Other definitions for anorak that I've seen before include "Hooded waterproof jacket" , "Boring type's coat" , "trainspotter" , "Coat - trivia expert?" , "Waterproof - unfashionable person" .)