Used dinner hour misguidedly, turning out thus? (14)
I believe the answer is:
undernourished
'turning out thus?' is the definition.
I can't judge whether this defines the answer.
'used dinner hour misguidedly' is the wordplay.
'misguidedly' indicates anagramming the letters.
'used'+'dinner'+'hour'='useddinnerhour'
'useddinnerhour' is an anagram of 'UNDERNOURISHED'.
(Other definitions for undernourished that I've seen before include "not well-fed?" , "poorly fed" .)