Possible Clues:

• Refuse sat festering in a refuse container
• Mark gives support to sailor's refrain
• Sailor Stanley accepting one will not vote
• Refuse stimulant though muscles ain't developed
• Refuse to vote, getting a black mark
• Keep away from the mark of the seaman
• How the seaman will get a mark even if he doesn't take it
• 'Refrain from, voting or eating, say (7)'
• Refrain (from voting)
• Keep away from drink