It has its point in traffic control (4)
I believe the answer is:
cone
'point in traffic control' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'it has its' is the wordplay.
'it' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'has' is a charade indicator (letters next to each other).
'its' becomes 'con' (I can't explain this - if you can you should believe this answer much more).
'e' put after 'con' is 'CONE'.
Can you help me to learn more?
(Other definitions for cone that I've seen before include "Portable marker for lines on road" , "may obstruct lane" , "99, maybe" , "Ice cream holder" , "Motorway menace" .)