Clue: Camille Saint-Saëns, without Ms Callas, is, I suspect, typical of a European hothead (6)
Answer: ETNEAN
Explanation: Definition: typical of a European hothead
=resembling Mount Etna
 (**Cami****ll**e **Sai**nt-**S**aen**s**)* minus **Ms** **Callas is I