Foaming at the mouth while nursing broken toe, perhaps? (7,3)
I believe the answer is:
hopping mad
'foaming at the mouth' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hopping mad that I've seen before include "In a terrible rage" , "Wild" , "Furious (as a frog?)" , "in angry mood" , "in high dudgeon" .)