burst inward (8)
'burst inward' is the definition.
(synonyms)
This is all the clue.
(Other definitions for implode that I've seen before include "Violently collapse inwards" , "Cause to burst inwards" , "Burst inward" , "Collapse suddenly inwards" .)
'burst inward' is the definition.
(I've seen this before)
This is the entire clue.
(Another definition for imploded that I've seen is " Burst inward".)