What separates Grimsby from The Hague or Athens, bizarrely (5,3)
I believe the answer is:
north sea
'what separates grimsby from the hague' is the definition.
I can't tell whether this definition defines the answer.
'or athens bizarrely' is the wordplay.
'bizarrely' indicates an anagram.
'or'+'athens'='orathens'
'orathens' is an anagram of 'NORTH SEA'.
Can you help me to learn more?
(Other definitions for north sea that I've seen before include "(Formerly) German Ocean" , "Water to east of UK" , "Source of UK's oil/gas" , "Water beside UK" , "UK source of natural gas" .)