Blanche Neige et Les Sept Nains in battle? (7)

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

definition refers to the battle of Lepanto [wiki] “Blanche Neige et Les Sept Nains” is French for Snow White and The Seven Dwarfs a pantomime adaptation of this might be referred to in French as ‘le panto’ (the panto)