Eliminate from a tied race (9)
I believe the answer is:
eradicate
'eliminate' is the definition.
(I know that eliminate can be written as eradicate)
'from a tied race' is the wordplay.
'from' is an anagram indicator (from the letters).
'a'+'tied'+'race'='atiedrace'
'atiedrace' with letters rearranged gives 'ERADICATE'.
(Other definitions for eradicate that I've seen before include "Scotch" , "carry out a purge" , "Root out" , "Expunge" , "Dispose of" .)