Men fitting plug reordered electrical component (7)
I believe the answer is:
adaptor
'electrical component' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'men fitting plug reordered' is the wordplay.
I cannot really see how this works, but
'men' could be 'or' (Other Ranks: non-commissioned soldiers) and 'or' is present in the answer.
'fitting' could be 'apt' (both mean appropriate) and 'apt' is found within the answer.
'plug' could be 'ad' (as in plugging a product) and 'ad' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for adaptor that I've seen before include "Connector (O, not E)" , "Device that enables more than one plug per socket" , "Connector for differing plug types" , "Electrical connector" , "It enables fit" .)