Inclined to show stress in hospital, I confess (6)
I believe the answer is:
italic
'inclined to show stress' is the definition.
(words are italicised to show stress)
'in hospital i confess' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ITALIC' can be found hidden inside 'hospital i confess'.
(Other definitions for italic that I've seen before include "Relating to letters sloping to the right" , "Relating to slanting handwriting or type" , "Like a sloping typeface" , "Print style used for emphasis, titles of books, etc" , "Sloping font" .)