Related Clues:

• Tie up the guard, say
• Offer support to
• Do an accessory's job
• Support in shenanigans
• Keep a low profile
• ''Not on __!''
• Help feloniously
• Lend support to
• Seek counterpart
• Help a crook
• Drive a thief away?
• Help when one shouldn't
• Act as lookout, e.g.
• Help hoods
• Help in a crime