Released some profound ideas (5)
I believe the answer is:
undid
'released' is the definition.
(I've seen this before)
'some profound ideas' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'UNDID' is hidden in the letters of 'profound ideas'.
(Other definitions for undid that I've seen before include "Released" , "Loosened; ruined" , "Unbuttoned" , "Disentangled" , "solved knotty problem" .)