Sounds like Trim or Ring? (4)
I believe the answer is:
peal
'ring?' is the definition.
(pealing is a kind of ringing)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for peal that I've seen before include "(Bells) ring" , "Leap about to sound of bells" , "Ring (of bell), clap (of thunder)" , "Prolonged sound of a bell" , "Sound of bells, thunder" .)