South American native's mostly feeling affection on vacation (6)
I believe the answer is:
toucan
'south american native's' is the definition.
(bird native to South America)
'mostly feeling affection on vacation' is the wordplay.
'mostly' means to remove the last letter.
'feeling' becomes 'touch' (touch is a kind of feeling).
'affection on vacation' becomes 'an' (I can't justify this - if you can you should give a lot more credence to this answer).
'touch' with its last letter taken away is 'touc'.
'touc'+'an'='TOUCAN'
Can you help me to learn more?
(Other definitions for toucan that I've seen before include "Coloured tropical bird with a large beak" , "One with huge bill" , "Large-beaked bird" , "exotic bird" , "arboreal dweller" .)