Landmass created by Greek god and goddess (7)
I believe the answer is:
pangaea
'landmass' is the definition.
(I know that Pangaea is or was a continent)
'greek god and goddess' is the wordplay.
'greek god' becomes 'Pan' (Pan is an example).
'and' says to put letters next to each other.
'goddess' becomes 'gaea' (I can't justify this - if you can you should believe this answer much more).
'pan'+'gaea'='PANGAEA'
'created by' is the link.
Can you help me to learn more?
(Other definitions for pangaea that I've seen before include "Hypothetical early continent, all earth in Greek" , "land now broken up" , "Original supercontinent" , "Original large continent" , "ancient landmass" .)