Particularly marks way of speaking? It's something found on the street (9)
I believe the answer is:
flagstone
'street' 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?
'particularly marks way of speaking? it's something found on the' is the wordplay.
I cannot quite understand how this works, but
'marks' could be 'flags' (flagging is a kind of marking) and 'flags' is found in the answer.
'way' could be 'n' (Compass direction - North) and 'n' is located in the answer.
'of' could be 'o' and 'o' is present in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for flagstone that I've seen before include "Paving slab" , "It'll lay (some say) at ground level" , "Fine-textured rock" , "One walked on" , "Pavior made from Teflon gas" .)