Player of instruments interpreted disco hit, right? (14)
I believe the answer is:
harpsichordist
'player' is the definition.
(harpsichordist is a kind of player)
'instruments interpreted disco hit right?' is the wordplay.
'instruments' becomes 'harps' (harp is a kind of instrument).
'interpreted' is an anagram indicator.
'right?' becomes 'r' (common abbreviation).
'disco'+'hit'+'r'='discohitr'
'discohitr' with letters rearranged gives 'ichordist'.
'harps'+'ichordist'='HARPSICHORDIST'
'of' acts as a link.
(Other definitions for harpsichordist that I've seen before include "Keyboard player" , "Scarlatti, say" , "Continuo player possibly" .)