Foot light (6)
I believe the answer is:
settle
This could be a double definition.
'foot' is the first 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?
'light' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for settle that I've seen before include "rest > put in order" , "Come to an agreement about something" , "Resolve - to pay one's debts" , "Decide - colonise" , "Resolve (a dispute)" .)