As politely said to one you want to see the back of? (5,3)
I believe the answer is:
after you
'as politely said to one you want to see' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'back of?' is the wordplay.
I cannot quite see how this works, but
'back' could be 'aft' (associated in meaning) and 'aft' is present in the answer.
'of?' could be 'o' and 'o' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'the' acts as a link.
Can you help me to learn more?
(Other definitions for after you that I've seen before include "Yielding statement" , "I'll follow" .)