Fight Club follows The Big Sleep with a cut (6)
I believe the answer is:
combat
'fight' is the definition.
(I know that fight can be written as combat)
'club follows the big sleep with a cut' is the wordplay.
I cannot really understand how this works, but
'club' could be 'bat' (as in sporting equipment) and 'bat' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for combat that I've seen before include "Fight against; fighting" , "Fight or contest, may be mortal" , "sort of jacket" , "Take action to deal with - fight" , "Oppose" .)