Given final no-frills rates reminder? (5)
I believe the answer is:
nudge
'reminder?' 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 nudge that I've seen before include "Light touch or push" , "Give a reminder" , "Prod gently with elbow" , "Elbow someone gently" , "Jogger" .)