Guitarist's aid (4)
I believe the answer is:
capo
(Other definitions for capo that I've seen before include "Head honcho in Cosa Nostra" , "Movable bridge" , "Mafia leader" , "crime boss" , "Leader of gang" .)
I believe the answer is:
capo
(Other definitions for capo that I've seen before include "Head honcho in Cosa Nostra" , "Movable bridge" , "Mafia leader" , "crime boss" , "Leader of gang" .)