Players back from gents on court (5)
I believe the answer is:
squad
'players' is the definition.
(eg a group of football players)
'back from gents on court' is the wordplay.
'back from' indicates one should take the final letters (the letter at the back of the word).
'on' says to put letters next to each other.
'court' becomes 'quad' (quad can mean a rectangular courtyard).
The final letter of 'gents' is 's'.
's'+'quad'='SQUAD'
(Other definitions for squad that I've seen before include "Working party" , "Pool of players" , "Working-party" , "Small military unit" , "Small group or team" .)