Fantastic Spurs team does ultimately qualify (4,6)
I believe the answer is:
pass muster
'qualify' is the definition.
(thesaurus)
'fantastic spurs team does ultimately' is the wordplay.
'fantastic' indicates an anagram (a fantastic or improbable ordering of the letters).
'ultimately' suggests the final letters.
The last letter of 'does' is 's'.
'spurs'+'team'+'s'='spursteams'
'spursteams' anagrammed gives 'PASS MUSTER'.
(Other definitions for pass muster that I've seen before include "Satisfy, suffice" , "Be good enough" , "appear acceptable" , "To fit the bill" .)