Edward under water in chair (6)
I believe the answer is:
seated
'edward under water in chair' is the definition.
I can't judge whether this defines the answer.
'edward under water' is the wordplay.
'edward' becomes 'ted'.
'under' says to put letters next to each other (below, in a down clue).
'water' becomes 'sea' (the sea is water).
'ted' put after 'sea' is 'SEATED'.
Can you help me to learn more?
(Other definitions for seated that I've seen before include "Sedentary" , "Sitting in sedate way" , "Given chair" , "not standing for it" .)