Gain attention towards end of discussion (4)
I believe the answer is:
earn
'gain' is the definition.
(I've seen this before)
'attention towards end of discussion' is the wordplay.
'attention' becomes 'ear' (ear is a kind of attention).
'towards' is a charade indicator (letters next to each other) (I've seen this in other clues).
'end of' suggests the final letters.
The last letter of 'discussion' is 'n'.
'ear'+'n'='EARN'
(Other definitions for earn that I've seen before include "Deserve - merit" , "Warrant" , "Make - merit" , "Gain by working" , "Near (anag.)" .)