Concerned with measurement of energy in Asian sea (5)
I believe the answer is:
areal
'concerned with measurement' is the definition.
I can't judge whether this definition defines the answer.
'energy in asian sea' is the wordplay.
'energy' becomes 'e' (physics symbol as in E=mc2).
'in' indicates putting letters inside.
'asian sea' becomes 'aral' (I've seen this in another clue).
'e' placed within 'aral' is 'AREAL'.
'of' is the link.
Can you help me to learn more?
(Other definitions for areal that I've seen before include "Like region" , "Concerned with size" , "of space" .)