Related Clues:

• Look for something or someone, perhaps chaser
• Request, induce
• Have ambition for, say, 3 Down
• Seek, hunt
• Ask earnestly about colitis
• Look, that's built over 3 down
• Hunt for what's built over the bottom
• Hears about a hundred and one way to 16 down
• Look for how it's built over the bottom
• Look for it built over at last
• Might Chas be made to look around for 'er?
• Built over at last for the lookout
• Look for it overhead at last
• Look for what's overhead at the bottom
• Something's chaste, by the sound of it