Insectivorous bird biting female warder at Tower (9)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

BEE-EATER (insectivorous bird) containing [biting] F (female). The Beefeaters’ official title is: The Yeomen Warders of His Majesty’s Royal Palace and Fortress the Tower of London, and Members of the Sovereign’s Body Guard of the Yeoman Guard Extraordinary. You can see why the nickname was invented!