Related Clues:

• Shore up
• Carpenter's tool for a pair
• A pair as of game birds
• Support or hold steady
• Does this give strength to both of them?
• A bit more and one might make the whole of it, by the sound of it
• That's make it fast and go fast at last
• Pare the sound of the half of what might be 11 across
• The pair can get a bit of a bore
• Prop
• Beam supporting a ceiling
• Prepare (oneself), as for a jolt
• Reinforcing device
• Support for two? Ditto at church
• A boring couple