Related Clues:

• It's no good looking this way
• He could make this hugely plain
• That makes it very plain
• It's clear that sisters were on the ball
• The very sound of a plane
• That makes it all very plain
• Plainly this might be a duckling (4)
• In his youth, Drake may have seemed one with 21 down
• That makes it absolutely plain for the little duck
• Very plain guy about fifty
• Duck a little before swanning around
• Lug most of what's more than plain
• It's very plain for duckling
• Extremely unattractive
• Like a 16-Across