Prevaricated, not wanting page changed (7)
I believe the answer is:
altered
'changed' is the definition.
(similar in meaning)
'prevaricated not wanting page' is the wordplay.
'prevaricated' becomes 'paltered' ('palter' can be a synonym of 'prevaricate').
'not wanting' indicates named letters should be taken away.
'page' becomes 'p'.
'paltered' with 'p' taken away is 'ALTERED'.
(Other definitions for altered that I've seen before include "Changed, modified" , "Converted" , "Change" , "Changed, adapted" , "Reformed" .)