Doubts function of hearing aids (5)
I believe the answer is:
fears
'doubts' is the definition.
Although both the answer and definition are verbs in their -s form, I don't understand how one could define the other.
'function of hearing aids' is the wordplay.
'function of' becomes 'f' (I can't explain this - if you can you should believe this answer much more).
'hearing aids' becomes 'ears' (I've seen this in another clue).
'f'+'ears'='FEARS'
Can you help me to learn more?
(Other definitions for fears that I've seen before include "Concerns, dreads" , "Apprehensions" , "Is afraid of" .)