Answer: HELICON

The answer HELICON has 3 possible clues. See the results below:

Possible Clues:
Mountain home of the Muses
Sousaphone kin
Man left picture on mount for inspiration

Last seen in:
The Guardian - Cryptic - Oct 20, 2011
Thinks.com - Sep 13, 2007
Eugene Sheffer - King Feature Syndicate - Sep 10, 2005