Club closed during utter shambles (8)
I believe the answer is:
abattoir
'shambles' is the definition.
(shambles could historically mean a slaughterhouse)
'club closed during utter' is the wordplay.
'club' becomes 'bat' (as in sporting equipment).
'closed' becomes 'to' (as in a door closed to).
'during' is an insertion indicator.
'utter' becomes 'air' (I can't explain this - if you can you should believe this answer much more).
'bat'+'to'='batto'
'batto' placed inside 'air' is 'ABATTOIR'.
Can you help me to learn more?
(Other definitions for abattoir that I've seen before include "Make smile for camera" , "it makes a killing" , "place where animals die" , "stunning location" , "shambles once" .)