Good entertainer providing spirit (5)
I believe the answer is:
ghost
'spirit' is the definition.
(ghost is a kind of spirit)
'good entertainer' is the wordplay.
'good' becomes 'g' (abbreviation).
'entertainer' becomes 'host' (host is a kind of entertainer).
'g'+'host'='GHOST'
'providing' is the link.
(Other definitions for ghost that I've seen before include "Write for another" , "Phantom" , "Spook, spectre" , "Pen for another" , "Lay down life for another in this" .)