Give an indication to the listeners (6)
I believe the answer is:
assign
'give' is the definition.
(to assign is to give or allocate)
'an indication to the listeners' is the wordplay.
'an indication' becomes 'sign' (I've seen this before).
'to' says to put letters next to each other (I've seen this in other clues).
'the listeners' becomes 'as' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sign' after 'as' is 'ASSIGN'.
Can you help me to learn more?
(Other definitions for assign that I've seen before include "Attribute" , "Allot or ascribe" , "Transfer or appoint to" , "Allocate; designate" , "share out" .)