Royalist going crazy on his own? (8)
I believe the answer is:
solitary
'on his own?' is the definition.
Both the answer and definition are adjectives. Maybe you can see an association between them that I don't see?
'royalist going crazy' is the wordplay.
'going crazy' indicates anagramming the letters.
'royalist' anagrammed gives 'SOLITARY'.
Can you help me to learn more?
(Other definitions for solitary that I've seen before include "reclusive" , "punishment" , "Secluded, isolated" , "friendless" , "Recluse" .)