Violently catapulting pug out of ocean? (8)
I believe the answer is:
atlantic
'of ocean?' is the definition.
(I know this)
'violently catapulting pug out' is the wordplay.
'violently' indicates anagramming the letters (letters are violently disrupted).
'out' is a deletion indicator.
'catapulting' with 'pug' removed is 'cataltin'.
'cataltin' with letters rearranged gives 'ATLANTIC'.
(Other definitions for atlantic that I've seen before include "Ocean from Arctic to Antarctic" , "UK's nearest ocean" , "'The Pond'" , "Great sea" , "Latin cat found, strangely, in the ocean" .)