Freedom of speech is blessing in disguise (8)
I believe the answer is:
'freedom of speech' is the definition.
The definition and answer can be both human attributes as well as being singular nouns.
Maybe there's a link between them I don't understand?
'blessing in disguise' is the wordplay.
'in disguise' indicates anagramming the letters.
'blessing' is an anagram of 'GLIBNESS'.
'is' is the link.
Can you help me to learn more?
(Other definitions for glibness that I've seen before include "Blessing (anag) -- slickness of speech" , "Blessing (anag) - quality of a slick sales person" .)