Women stop at rest centre (5)
I believe the answer is:
dames
'women' is the definition.
(dame is a kind of woman)
'stop at rest centre' is the wordplay.
'stop' becomes 'dam' (I've seen this in other clues).
'at' is a charade indicator (letters next to each other).
'centre' means to look at the middle letters.
The central letters of 'rest' are 'es'.
'dam'+'es'='DAMES'
(Other definitions for dames that I've seen before include "Knighted or slangy women" , "Honoured women" , "Women (US sl.)" , "English ladies - American women" , "Pantomime men as women" .)