Mingle in area around end of lane (8)
I believe the answer is:
interact
'mingle' is the definition.
'in area around end of lane' is the wordplay.
'area' becomes 'tract' (tract is a kind of area**).
'around' indicates putting letters inside.
'end of' suggests the final letters.
The final letter of 'lane' is 'e'.
'tract' enclosing 'e' is 'teract'.
'in'+'teract'='INTERACT'
(Other definitions for interact that I've seen before include "Work closely together" , "Combine" , "Be responsive to one another" , "Mix with each other" , "Train etc. (anag.)" .)