Related Clues:

• 'On the face of it, 29 across are this up (4)'
• Zest alternative
• Oven part
• Clock-face
• Dismal, heartless old way to call
• Early phone feature
• Use a really old telephone
• Classic phone feature
• Lifebuoy rival
• Betted, backing out-of-form steeplechaser up from Hitchcock film
• Appears laid back, but is on watch
• Mug put down is set up
• Raised hat covering a face
• Face setback
• Face with numbers