The Archers has at least one listener (3)
I believe the answer is:
ear
'least one listener' is the definition.
'ear' can be an answer for 'listener' (body part which hears or listens). I am not certain of the 'least one' bit.
'the archers has' is the wordplay.
'has' says the answer is hidden in the clue.
'EAR' is hidden within 'the archers'.
'at' is the link.
Can you help me to learn more?
(Other definitions for ear that I've seen before include "Hearing aid?" , "Lughole" , "Listening organ" , "Listener in the cornfield" , "Attention; an organ" .)