Uniform on the Spanish football team? (6)
I believe the answer is:
eleven
'football team?' is the definition.
(I know that football team can be written as eleven)
'uniform on the spanish' is the wordplay.
'uniform' becomes 'even' (both can mean equal or level).
'on' says to put letters next to each other.
'the spanish' becomes 'el' ('the' in Spanish).
'even' after 'el' is 'ELEVEN'.
(Other definitions for eleven that I've seen before include "Time for morning coffee" , "sports team?" , "Odd number for a team" , "Sporting side" , "football team, for example" .)