Convenience located in local avenue (3)
I believe the answer is:
lav
'convenience' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'located in local avenue' is the wordplay.
'located in' says the answer is hidden in the clue.
'LAV' is hidden in the letters of 'local avenue'.
Can you help me to learn more?
(Other definitions for lav that I've seen before include "Private place in short" , "toilet" , "Loo" .)