About to pop off, collecting duke’s golfing attendant (6)
I believe the answer is:
caddie
'golfing attendant' is the definition.
'caddie' can be an answer for 'attendant' (caddie is a kind of attendant). I am unsure of the 'golfing' bit.
'about to pop off collecting duke's' is the wordplay.
'about' becomes 'ca' (short for circa).
'to pop off' becomes 'die'.
'collecting' means one lot of letters goes inside another.
'duke' becomes 'd' (abbreviation).
'die' enclosing 'd' is 'ddie'.
'ca'+'ddie'='CADDIE'
Can you help me to learn more?
(Other definitions for caddie that I've seen before include "Golfing assistant" , "Golfer's attendant" , "A golfer's assistant-adviser" , "Golfer's assistant on course" , "Assistant to carry the golf clubs" .)