Piece of furniture having unpleasant smell? Fine when in church (8)
I believe the answer is:
bookcase
'piece of furniture' is the definition.
(bookcase is a kind of piece of furniture)
'unpleasant smell? fine when in church' is the wordplay.
'unpleasant smell?' becomes 'bo' (informal abbreviation for body odour).
'fine' becomes 'ok' (synonyms).
'when' becomes 'as'.
'in' is an insertion indicator.
'church' becomes 'ce' (abbreviation for Church of England).
'as' placed inside 'ce' is 'case'.
'bo'+'ok'+'case'='BOOKCASE'
'having' acts as a link.
(Other definitions for bookcase that I've seen before include "Library furniture" , "Item of furniture" , "Reading matter cabinet" , "Article of furniture" , "Library cabinet" .)