Player on a court getting nothing right (5)
'player' is the definition.
'a court getting nothing right' is the wordplay.
'court' becomes 'ct' (abbreviation used in road names).
'getting' is a charade indicator (letters next to each other).
'nothing' becomes 'o' (looks like zero - 0).
'right' becomes 'R' (common abbreviation).
'on' acts as a link.
(Other definitions for actor that I've seen before include "Dramatic artist", "Stage-player", "Theatrical performer", "Theatrical player", "One taking part".)