Break seal, try to bury the dead (3,2,4)
I believe the answer is:
lay to rest
'bury the dead' is the definition.
'lay to rest' can be an answer for 'bury' (synonyms). I'm not certain of the 'the dead' bit.
'break seal try to' is the wordplay.
'break' indicates an anagram.
'seal'+'try'+'to'='sealtryto'
'sealtryto' is an anagram of 'LAY TO REST'.
Can you help me to learn more?
(Other definitions for lay to rest that I've seen before include "Bury" , "Inter" , "Maybe put in shroud" , "Finally solve" .)