Concentrate on hearing (6)
I believe the answer is:
listen
(Other definitions for listen that I've seen before include "Hark!" , "Make an effort to hear" , "Pay heed (to advice)" , "Respond to a request" , "16 (anag.)" .)
I believe the answer is:
listen
(Other definitions for listen that I've seen before include "Hark!" , "Make an effort to hear" , "Pay heed (to advice)" , "Respond to a request" , "16 (anag.)" .)