Uncovers the last ten attitudes (7)
I believe the answer is:
exposes
'uncovers' is the definition.
('expose' can be a synonym of 'uncover')
'the last ten attitudes' is the wordplay.
'last' says to take the final letters.
'ten' becomes 'X' (Roman numeral).
'attitudes' becomes 'poses' (I've seen this in other clues).
The last letter of 'the' is 'e'.
'e'+'x'+'poses'='EXPOSES'
(Other definitions for exposes that I've seen before include "Reveals" , "Uncovers" , "Brings to light" , "Deprives of cover" , "scandalous revelations?" .)