Find Pluto cold no more (8)
I believe the answer is:
discover
'find' is the definition.
('discover' can be a synonym of 'find')
'pluto cold no more' is the wordplay.
'pluto' becomes 'dis' (another name for the mythical god).
'cold' becomes 'c' (eg on taps).
'no more' becomes 'over' (I've seen this before).
'dis'+'c'+'over'='DISCOVER'
(Other definitions for discover that I've seen before include "Find through searching" , "Make a new finding" , "Be the first to find or see" , "Find out about record surplus" , "Find during a search" .)