Attractive woman briefly claims the heart of William Tell (4)

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

Attractive woman briefly claims the heart of William Tell <wil> L <iam> (“heart of” means middle letter only) in BAB <e> (=attractive woman; “briefly” means last letter is dropped); to blab is to let out a secret, hence to “tell”!