Related Clues:

• Railway engineer to draw couple again
• Secure, as loosened shoelaces
• Draw once more? Not again, we hear
• Make even tighter, say
• Fix, as some neckwear
• Latch again, as a door
• Fix, as loose laces
• Secure again, as a shoelace
• Deal with, as loose laces
• One leaving service -- though not with Sappers latterly -- is to join up again
• Fix one's laces again
• Once again, make fast retreat — run off
• Knot up again
• Couple again to get rid of spam in spare time
• Secure anew, in a way