Lies about attitudes (7)
I believe the answer is:
reposes
'lies' is the definition.
(reposing is a kind of liing)
'about attitudes' is the wordplay.
'about' becomes 're' (regarding).
'attitudes' becomes 'poses' (I've seen this in other clues).
're'+'poses'='REPOSES'
(Other definitions for reposes that I've seen before include "Rests" , "Takes new position" , "takes it easy" , "lies" .)