Kinky bottomless American sweetheart you called "honey bear" (8)
I believe the answer is:
kinkajou
'honey bear' is the definition.
(synonyms)
'kinky bottomless american sweetheart you' is the wordplay.
'bottomless' means to remove the last letter (the letter at the bottom is removed).
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'sweetheart' becomes 'jo' (Scottish term for darling or sweetheart).
'you' becomes 'u' (homophones).
'kinky' with its last letter removed is 'kink'.
'kink'+'a'+'jo'+'u'='KINKAJOU'
'called' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for kinkajou that I've seen before include "American native" , "The potto" .)