Way out on the outskirts of Essex, innit? (4)
I believe the answer is:
exit
'way out' is the definition.
(synonyms)
'on the outskirts of essex innit?' is the wordplay.
'on' means one lot of letters go next to another.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'outskirts of' says to hollow out the word (remove centre letters) (only letters on the outskirts).
'innit?' becomes 'i' (this might be a standard abbreviation which I don't know about).
'essex' with its middle taken out is 'ex'.
'ex'+'i'='exi'
't' after 'exi' is 'EXIT'.
Can you help me to learn more?
(Other definitions for exit that I've seen before include "Depart" , "farewell!" , "Means of egress" , "walk away" , "Outlet" .)