Viking found here breaking no hearts (5,3)
I believe the answer is:
north sea
'viking found here' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'breaking no hearts' is the wordplay.
'breaking' is an anagram indicator.
'no'+'hearts'='nohearts'
'nohearts' anagrammed gives 'NORTH SEA'.
Can you help me to learn more?
(Other definitions for north sea that I've seen before include "Water beside UK" , "Source of UK's oil/gas" , "It's not land to our East" , "British oil/gas area" , "Oil producer" .)