Find out about American saints (4)
I believe the answer is:
suss
'find out' is the definition.
Although both the answer and 'find' are nouns, they are not in the same form of the noun.
'about american saints' is the wordplay.
'about' says the letters should be written backwards.
'american' becomes 'us' (abbreviation for United States).
'saints' becomes 'ss'.
'us' back-to-front is 'su'.
'su'+'ss'='SUSS'
Can you help me to learn more?
(Other definitions for suss that I've seen before include "Work (out) (slang)" , "Figure (out)" , "sharpness of mind" , "Realise (informal)" , "Check out" .)