Orderly content to chaperone a therapist (4)
I believe the answer is:
neat
'orderly' is the definition.
(synonyms)
'content to chaperone a therapist' is the wordplay.
'content to' says the answer is hidden in the clue.
'NEAT' can be found hidden inside 'chaperone a therapist'.
(Other definitions for neat that I've seen before include "efficient" , "Trim - undiluted" , "not mixed with anything else" , "Spick and span" , "As whisky may be" .)