Said thank you in turn, joining praise for property (9)
I believe the answer is:
attribute
'property' is the definition.
(synonyms)
'said thank you in turn joining praise' is the wordplay.
'said' becomes 't' (I've seen this in other clues).
'thank you in' becomes 'a' (I can't explain this - if you can you should give a lot more credence to this answer).
'turn' shows that the letters should be reversed in order.
'joining' is a charade indicator (letters next to each other).
'praise' becomes 'tribute'.
't'+'a'='ta'
'ta' reversed gives 'at'.
'at'+'tribute'='ATTRIBUTE'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for attribute that I've seen before include "Quality characteristic of person or thing" , "Ascribe, impute" , "Character" , "Ascribe (to a cause)" , "Credit - property" .)