Possible Clues:

• Behave obsequiously
• Be obsequious
• What fiddler might do? Behave obsequiously
• Kowtow, as the novice violinist might?
• Two ways to fiddle show subservience
• What violinists might have to do if rosin didn't exist?
• What a fiddler may do to appear deferential
• Two things (semi-competent?) violinist might do to be obsequious?
• Show humility, playing violin badly?
• Flatter front to boat can spread badly