"The Archers", it seems, has at least one listener! (3)
I believe the answer is:
ear
'one listener' is the definition.
(body part which hears or listens)
'the archers it seems has at least' is the wordplay.
'EAR' is hidden within the letters.
But, I am uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for ear that I've seen before include "Organ of hearing" , "Organ involved with balance" , "one hears" , "'Give every man thine ..., but few thy voice'/Hamlet" , "Aural appendage" .)