Possible Clues:

• I'm accustomed to be this by 8 across
• It'd make you laugh the way I'm employed
• Got a grin out of
• I'm accustomed to having made them laugh
• Claim to be exploited? Queen Victoria was not!
• SPREAD THE JOY
• A maiden managed to get tickled
• Medusa (anag.)
• Tickled to find source of artistic inspiration stopping commercial
• I'm fnding it funny to have got to 14 down