Relieved concerning student freed from anxiety (8)
I believe the answer is:
released
'relieved' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?
'concerning student freed from anxiety' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'student' becomes 'l' (as in L-plates for learner drivers).
'freed from anxiety' becomes 'eased' (I can't justify this - if you can you should believe this answer much more).
're'+'l'+'eased'='RELEASED'
Can you help me to learn more?
(Other definitions for released that I've seen before include "Sent from prison" , "Set free" , "free after imprisonment?" , "Let out - let out again" , "Freed from confinement" .)