Related Clues:

• Stick this on top of 20 down
• That might swing into the old wine
• In the middle of a sea, by the sound of it
• At last it gets blown
• That worker will see after it, by the sound of it
• There are letters after it
• You may have a job with the letters
• There might be a buzz from this, by the sound of it
• The bit of 9 down that one did not have to do
• Oversea sound in swarms
• That's a job for the letter
• Work for 21 across
• One won't fly oversea, by the sound of it
• Perhaps where to stick the 20 down
• It might be 'imself that's swarming