Lift up the hinge somehow (8)
I believe the answer is:
heighten
'lift up' is the definition.
(I've seen this before)
'the hinge somehow' is the wordplay.
'somehow' is an anagram indicator.
'the'+'hinge'='thehinge'
'thehinge' is an anagram of 'HEIGHTEN'.
(Other definitions for heighten that I've seen before include "effect some improvement" , "Intensify, enhance" , "Intensify; make taller" , "Lift" , "Make more intense - elevate?" .)