Perhaps Mario Balotelli's header, excellent at first, goes over the bar ultimately (7)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

definition: Mario the Nintendo video game character is a plumber (and for the surface reading, Mario Balotelli is a footballer) first letter (header) of B-[alotelli]; with PLUM=”excellent” going first”; all going over last letters (ultimately) of [th]-E [ba]-R