Related Clues:

• Lead-in for mouse or willow
• Palindromic bird
• What you swap for tat
• Black-throated ___
• Small as it is, he's able to make little bits of it
• A little bird tells me that it's on 16 across
• He could make what's small a bit small for church
• This little one is 11 down
• That's a little bird for a mammal
• He's after his bird for his ten per cent
• The willow of the Mikado
• A little bird tells me that he could make a tenth of it
• Small enough to fly up and down
• Little bird for a sucker
• He might follow one that's fly enough for the Church