He has a right to receive information (4)
I believe the answer is:
hear
'receive information' is the definition.
(I've seen this in another clue)
'he has a right' is the wordplay.
I cannot really see how this works, but
'he' is within the answer.
'a' is found in the answer.
'right' could be 'r' (common abbreviation) and 'r' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'to' is the link.
Can you help me to learn more?
(Other definitions for hear that I've seen before include "Perceive aurally" , "Catch" , "Try (in court)" , "attend" , "Hark" .)