Yes, a Pole has a commission
I believe the answer is:
sin
'a commission' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'yes a pole' is the wordplay.
'yes' becomes 'si' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a pole' becomes 'n' (abbreviation for North, as in North Pole).
'si'+'n'='SIN'
'has' acts as a link.
Can you help me to learn more?
(Other definitions for sin that I've seen before include "grave offence" , "Pride, say" , "Err" , "Mortal error" , "Serious transgression" .)