Doc wants to bend low (8)
I believe the answer is:
downcast
'low' is the definition.
(I know that low can be written as downcast)
'doc wants to bend' is the wordplay.
'to bend' indicates an anagram (I've seen 'bending' mean this).
'doc'+'wants'='docwants'
'docwants' anagrammed gives 'DOWNCAST'.
(Other definitions for downcast that I've seen before include "Low in spirits" , "Depressed - looking at the floor?" , "Sad" , "disheartened" , "Melancholic" .)