Rugby union team provided support after France beaten at last (7)
I believe the answer is:
fifteen
'rugby union team' is the definition.
(I've seen this before)
'support after france beaten at last' is the wordplay.
I cannot quite understand how this works, but
'support' could be 'tee' (tee is a kind of support) and 'tee' is found within the answer.
'france' could be 'f' and 'f' is found in the answer.
'last' could be 'f' (I've seen this in other clues) and 'f' is located in the answer.
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is found in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'provided' acts as a link.
Can you help me to learn more?
(Other definitions for fifteen that I've seen before include "... number" , "Product of two primes" , "Square root of 225" , "Square root of two hundred and twenty-five" , "XV" .)