Take a lead role in performing arts (4)
I believe the answer is:
star
'take a lead role' is the definition.
(as in starring in a film)
'performing arts' is the wordplay.
'performing' indicates anagramming the letters.
'arts' is an anagram of 'STAR'.
'in' is the link.
(Other definitions for star that I've seen before include "huge body of gas?" , "Ball of fire" , "Pointed symbol" , "Possible Christmas tree topper?" , "Pointed shape" .)