Many levers used with article (7)
I believe the answer is:
several
'many' is the definition.
(I've seen this before)
'levers used with article' is the wordplay.
'used with' indicates an anagram.
'article' becomes 'a' (the indefinite article in English).
'levers' anagrammed with 'a' can make 'SEVERAL'.
(Other definitions for several that I've seen before include "Some participants" , "Various, sundry" , "three or four" , "Assorted" , "Sundry, distinct" .)