Bound to have equal scores (4)
I believe the answer is:
tied
I believe this clue is a double definition.
'bound' is the first definition.
('tie' can be a synonym of 'bind')
'have equal scores' is the second definition.
(I've seen this before)
'to' acts as a link.
(Other definitions for tied that I've seen before include "Drew; bound" , "(Of pub) brewery-owned" , "limited" , "Fastened with string" , "Bound to diet" .)