"Get rid of . . .” shortened to be better (6)
I believe the answer is:
outwit
'be better' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for outwit that I've seen before include "Be too clever for, get the better of" , "Outfox" , "Defeat by superior ingenuity" , "Gull" , "Get the better of by being smarter" .)