Expect a burden for the listener? (5)
I believe the answer is:
await
'expect' is the definition.
('await' can be a synonym of 'expect')
'a burden for the listener?' is the wordplay.
'burden' becomes 'weight' ('weight' can be a synonym of 'burden').
'for the listener?' shows a homophone (sound like) (I've seen 'for the listener' mean this).
'weight' sounds like 'wait'.
'a'+'wait'='AWAIT'
(Other definitions for await that I've seen before include "Hid a microphone in; bothered" , "Be in expectation of (an event)" , "Be ready for" , "Stay around for" , "Remain for (someone)" .)