Former Liberal coming round to praise highly (5)
I believe the answer is:
extol
'praise highly' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for extol that I've seen before include "Warmly approve of" , "Speak well of" , "Exalt" , "'Praise, glorify (5)'" , "Praise greatly" .)