International student ultimately failed maths etc (4,5)
I believe the answer is:
test match
'international' is the definition.
(cricket international)
'student ultimately failed maths etc' is the wordplay.
'ultimately' indicates one should take the final letters.
'failed' indicates anagramming the letters.
The last letter of 'student' is 't'.
'maths'+'etc'='mathsetc'
'mathsetc' anagrammed gives 'estmatch'.
't'+'estmatch'='TEST MATCH'
(Other definitions for test match that I've seen before include "Cricket contest between countries, usually one of a series" , "International sports encounter" , "International (esp. cricket)" , "International game" , "sporting event" .)