Pass cost United a thrashing (11)
I believe the answer is:
outdistance
'pass' is the definition.
(thesaurus)
'cost united a thrashing' is the wordplay.
'thrashing' indicates anagramming the letters (I've seen this in other clues).
'cost'+'united'+'a'='costuniteda'
'costuniteda' with letters rearranged gives 'OUTDISTANCE'.
(Other definitions for outdistance that I've seen before include "Leave (someone) far behind" , "Travel further than" .)