One performs tricks of manual dexterity (7)
I believe the answer is:
juggler
'one performs tricks of manual dexterity' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for juggler that I've seen before include "One keeping several things in the air" , "Circus performer" , "Balls-in-air entertainer" , "Conjuror" , "One performs tricks of manual dexterity" .)