Sort of ball made square after manipulation (10)
I believe the answer is:
masquerade
'sort of ball' is the definition.
'made square after manipulation' is the wordplay.
'after manipulation' indicates anagramming the letters (I've seen this in other clues).
'made'+'square'='madesquare'
'madesquare' anagrammed gives 'MASQUERADE'.
(Other definitions for masquerade that I've seen before include "The wearing of disguise" , "Deception" , "Adam's queer? (anag)" , "False show; pretence" , "Dress up" .)