Praise new ideologies dismissing ego (7)
I believe the answer is:
idolise
'praise' is the definition.
('praise'->'idolize' is in my internal thesaurus and 'ize'->'ise')
'new ideologies dismissing ego' is the wordplay.
'new' indicates anagramming the letters.
'dismissing' suggests deleting specific letters.
'ideologies' with 'ego' taken away is 'idloies'.
'idloies' anagrammed gives 'IDOLISE'.
(Other definitions for idolise that I've seen before include "Revere (someone) greatly or excessively" , "Love too much" , "Worship extravagantly" , "Revere, love greatly" , "Make into a figure of worship" .)