Like a parrot, reddish-purple and old (8)
I believe the answer is:
plumaged
'like a parrot' is the definition.
I can't judge whether this definition defines the answer.
'reddish-purple and old' is the wordplay.
'reddish-purple' becomes 'plum' (I've seen this in another clue).
'and' says to put letters next to each other.
'old' becomes 'aged' (similar in meaning).
'plum'+'aged'='PLUMAGED'
Can you help me to learn more?
(Other definitions for plumaged that I've seen before include "Like birds" , "Feathered" .)