Praise formally and eloquently (8)
I believe the answer is:
eulogise
'praise formally and eloquently' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for eulogise that I've seen before include "Speak in praise of person" , "Rave about" , "Extol" , "Praise formally and eloquently" , "Acclaim" .)