Piece of writing about short official order for health professionals (6)
I believe the answer is:
medics
'health professionals' is the definition.
(medic is a kind of health professional)
'piece of writing about short official order' is the wordplay.
'piece of writing' becomes 'ms' (abbreviation for manuscript).
'about' is an insertion indicator.
'short' means to remove the last letter.
'official order' becomes 'edict' (an edict is an order or decree).
'edict' with its final letter taken away is 'edic'.
'ms' going around 'edic' is 'MEDICS'.
'for' is the link.
(Another definition for medics that I've seen is " bones".)