Origin of self-projection is an insult to a cricketer (6)
I believe the answer is:
sledge
'an insult to a cricketer' is the definition.
I can't tell whether this definition defines the answer.
'origin of self-projection' is the wordplay.
'origin of' indicates taking the first letters.
'projection' becomes 'ledge' (I've seen this before).
The first letter of 'self' is 's'.
's'+'ledge'='SLEDGE'
'is' is the link.
Can you help me to learn more?
(Other definitions for sledge that I've seen before include "one could go downhill fast" , "Vehicle on runners, for snow and ice" , "Snow conveyance" , "Heavy long-handled hammer" , "Snow vehicle or heavy hammer" .)