Show contempt for hospital attendant behaving badly (10)

I believe the answer is:

disorderly

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'show contempt for hospital attendant behaving badly' is the definition.
I can't judge whether this defines the answer.

'show contempt for hospital attendant' is the wordplay.
'show contempt for' becomes 'dis'.
'hospital attendant' becomes 'orderly' (synonyms).
'dis'+'orderly'='DISORDERLY'

Can you help me to learn more?

(Other definitions for disorderly that I've seen before include "undisciplined" , "Unruly" , "confused?" , "disturbance of the peace" , "a mess" .)

I've seen this clue in The Times.

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