Permitted audibly? Audibly (5)
I believe the answer is:
aloud
'audibly' is the definition.
(I've seen this before)
'permitted audibly?' is the wordplay.
'permitted' becomes 'allowed' ('allow' can be a synonym of 'permit').
'audibly?' shows a homophone (sound like) (I've seen 'audibly' mean this).
'allowed' sounds like 'ALOUD'.
(Other definitions for aloud that I've seen before include "intended for audience" , "Not under breath" , "For all to hear" , "it is said" , "Take part in, link" .)