Canal complaint? It is on record (9)
I believe the answer is:
enteritis
'canal complaint?' is the definition.
(medical complaint affecting the alimentary canal)
'it is on record' is the wordplay.
'on' is a charade indicator (letters next to each other).
'record' becomes 'enter' (synonyms).
'it'+'is'='itis'
'itis' put after 'enter' is 'ENTERITIS'.
(Other definitions for enteritis that I've seen before include "Inflammation of the intestine" , "not an infectious disease" , "gut problem" , "Intestinal inflammation" , "tummy upset" .)