County clubs replace director — it keeps things tight (6)
I believe the answer is:
corset
'it keeps things tight' is the definition.
(type of tight garment)
'county clubs replace director' is the wordplay.
I cannot really understand how this works, but
'county' could be 'co' and 'co' is located in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for corset that I've seen before include "Tight bodice" , "Shaping undergarment" , "A woman's close-fitting support undergarment" , "Tight-fitting ladies' garment" , "Stays" .)