Hear icon drum (6)
I believe the answer is:
cymbal
'drum' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'hear icon' is the wordplay.
'hear' indicates a 'sounds like' (homophone) clue.
'icon' becomes 'symbol' (an icon is a symbol or image).
'symbol' is a homophone of 'CYMBAL'.
Can you help me to learn more?
(Other definitions for cymbal that I've seen before include "One of a pair of brass plates clashed together" , "Crashing instrument" , "Origin of the Clash" , "Percussion instrument like brass plate" , "One of clashing pair" .)