In the amended text, the wanderer is a sociable type (9)
I believe the answer is:
extrovert
'a sociable type' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'in the amended text the wanderer' is the wordplay.
'in' means one lot of letters goes inside another.
'the amended' indicates an anagram.
'the wanderer' becomes 'rover' (synonyms).
'text' anagrammed gives 'extt'.
'extt' placed around 'rover' is 'EXTROVERT'.
'is' is the link.
Can you help me to learn more?
(Other definitions for extrovert that I've seen before include "Person who is outward-looking" , "Lively and outgoing person" , "Outgoing (personality)" , "Sociable, outgoing person" , "show-off" .)