Eclipse, surpass (5)
I believe the answer is:
outdo
I believe this clue is a double definition.
'eclipse' is the first definition.
(I've seen this before)
'surpass' is the second definition.
(I know this)
(Other definitions for outdo that I've seen before include "Br superior to (someone)" , "Get the better of" , "Perform better than (someone)" , "Perform better than surpass" , "Perform better than another" .)