View Pluto rising close to Neptune (4)
I believe the answer is:
side
'view' is the definition.
(side is a kind of view)
'pluto rising close to neptune' is the wordplay.
'pluto' becomes 'dis' (another name for the mythical god).
'rising' shows that the letters should be reversed in order (going up in a down clue).
'close to' indicates one should take the final letters (the close/ending of).
The final letter of 'neptune' is 'e'.
'dis' reversed gives 'sid'.
'sid'+'e'='SIDE'
(Other definitions for side that I've seen before include "Face - team" , "Accompanying" , "by no means a front" , "long forgotten" , "superciliousness" .)