Review on Yelp (4)
I believe the answer is:
rate
'review on yelp' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rate that I've seen before include "Rank; speed" , "Value; charge" , "Tariff" , "Assess; be worthy of" , "Think highly of; criticise severely" .)