Dislikes having stranger in Delaware streets (7)
I believe the answer is:
detests
'dislikes' is the definition.
(detesting is a kind of disliking)
'stranger in delaware streets' is the wordplay.
'stranger' becomes 'ET' (short for extraterrestrial, an alien).
'in' means one lot of letters goes inside another.
'delaware' becomes 'DE' (standard two letter abbrev).
'streets' becomes 'sts' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'et' placed into 'de' is 'dete'.
'dete'+'sts'='DETESTS'
'having' is the link.
Can you help me to learn more?
(Other definitions for detests that I've seen before include "Cordially loathe" , "Abominates" , "Loathes" , "Hates" , "Abhors" .)