Flat intersection behind college (4)
I believe the answer is:
unit
'flat' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'intersection behind college' is the wordplay.
'intersection' becomes 'T' (T junction).
'behind' is a charade indicator (letters next to each other).
'college' becomes 'uni' (short for university).
't' put after 'uni' is 'UNIT'.
Can you help me to learn more?
(Other definitions for unit that I've seen before include "Self-contained section" , "Army division" , "Single item, maybe part of a set" , "Individual thing, single and complete" , "Operational team" .)