Seize crumpled paper associated with hard objective (9)
I believe the answer is:
apprehend
'seize' is the definition.
(apprehending is a kind of seizing)
'crumpled paper associated with hard objective' is the wordplay.
'crumpled' indicates anagramming the letters (a crumbled or damaged version of the letters).
'associated with' says to put letters next to each other.
'hard' becomes 'h' (abbreviation used in pencil classifications).
'objective' becomes 'end' (both can mean a purpose).
'paper' anagrammed gives 'appre'.
'appre'+'h'+'end'='APPREHEND'
(Other definitions for apprehend that I've seen before include "nick" , "collar" , "Arrest - grasp" , "Be terribly afraid" , "Fear - arrest" .)