TV men rehearsed moves for play? (3,6)
I believe the answer is:
set pieces
'rehearsed moves for play?' is the definition.
(eg a set piece in football)
'tv men' is the wordplay.
'tv' becomes 'set' (television set).
'men' becomes 'pieces' ('piece' can be a synonym of 'man').
'set'+'pieces'='SET PIECES'
(Other definitions for set pieces that I've seen before include "bishops and others?" , "all 32 on board?" , "Practised manoeuvres" , "men on chess board?" , "Well-practised moves" .)