Hearing aid?
'hearing aid' is the definition.
(I've seen this in another clue)
'hearing aid' is the wordplay.
'EAR' is hidden in amongst the letters.
However, I'm not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for ear that I've seen before include "Part of corn plant" , "A corny bit" , "Fruiting head of corn" , "Aural appendage" , "Discernment musicians need" .)
'hearing aid?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for amp that I've seen before include "Map about electric unit" , "Map of electrical unit" , "Current; hi-fi kit" , "Current measure" , "Unit of electricity, in short" .)