Attractive girl's call picked up (5)
I believe the answer is:
belle
'attractive girl's' is the definition.
(I've seen this in another clue)
'call picked up' is the wordplay.
'call' becomes 'bell' (bell can mean a phone call).
'picked up' indicates a 'sounds like' (homophone) clue.
'bell' is a homophone of 'BELLE'.
(Other definitions for belle that I've seen before include "Beautiful female" , "-- Epoque, before the Great War" , "Most attractive girl" , "Beautiful woman - of the ball?" , "Girl who's fetching" .)