State heard wrong charged part (7)
I believe the answer is:
warhead
'charged part' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'state heard wrong' is the wordplay.
'state' becomes 'wa' (I've seen this in other clues).
'wrong' is an anagram indicator.
'heard' is an anagram of 'rhead'.
'wa'+'rhead'='WARHEAD'
Can you help me to learn more?
(Other definitions for warhead that I've seen before include "explosive container" , "Explosive missile part" , "Charge" , "bit of a weapon" , "Missile's explosive" .)