More or less important player (5)
I believe the answer is:
extra
This clue might be a double definition.
'more' is the first definition.
(I've seen this before)
'less important player' is the second definition.
'extra' can be an answer for 'player' (extra is a kind of player). I am not sure about the 'less important' bit.
'or' is the link.
Can you help me to learn more?
(Other definitions for extra that I've seen before include "Additional, like non-speaking actor" , "Wide, no-ball, leg bye, etc" , "23 player?" , "Studio crowd player" , "Actor in crowd scene, no lines" .)