I’m unwilling to delegate? Surprisingly not, for a clerk (7,5)
I believe the answer is:
control freak
'i'm unwilling to delegate?' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'surprisingly not for a clerk' is the wordplay.
'surprisingly' indicates an anagram (a surprising ordering of the letters).
'not'+'for'+'a'+'clerk'='notforaclerk'
'notforaclerk' is an anagram of 'CONTROL FREAK'.
Can you help me to learn more?
(Other definitions for control freak that I've seen before include "Person feeling the need to dominate" , "One with a compulsive desire to manipulate others" , "Person with a compulsion to be in charge" .)