Reply first of all right, receiving four points (6)
I believe the answer is:
answer
'reply' is the definition.
(answer is a kind of reply)
'first of all right receiving four points' is the wordplay.
'first of all' becomes 'a' (nst letter of 'all').
'right' becomes 'r' (common abbreviation).
'receiving' means one lot of letters goes inside another.
'four points' becomes 'nswe' (I can't explain this - if you can you should believe this answer much more).
'a'+'r'='ar'
'ar' placed around 'nswe' is 'ANSWER'.
Can you help me to learn more?
(Other definitions for answer that I've seen before include "Reaction to a question" , "Solution (to problem)" , "Response - solution" , "Fulfil" , "Solve - solution" .)
