Related Clues:

• Sound from a tree
• Sound of a small bird
• Palindromic glimpse
• A quick look
• Sound made by small bird
• Look surreptitiously, like Tom
• Look surreptitiously - through a keyhole?
• A palindromic glimpse
• Look secretly
• Short sharp tone of grasshopper
• Make sound like grasshopper
• She might look a little as if she had B.O.
• Something in 11 across would have this sort of a look while looking for the flock
• One might look a little likethis, Bo
• There's little with this look to have lost the flock, Bo