Fear of making the initial blunder (6)
I believe the answer is:
terror
'fear of' is the definition.
'terror' can be an answer for 'fear' (I've seen this before). I'm unsure of the 'of' bit.
'the initial blunder' is the wordplay.
'initial' suggests taking the first letters.
'blunder' becomes 'error' (I've seen this before).
The first letter of 'the' is 't'.
't'+'error'='TERROR'
'making' is the link.
Can you help me to learn more?
(Other definitions for terror that I've seen before include "Troublesome child" , "Alarm" , "Extreme fear of dread" , "Great fear" , "Utter dread" .)