Superintendent sets example, arresting sucker (6)
I believe the answer is:
tsetse
'arresting sucker' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'superintendent sets example' is the wordplay.
'TSETSE' is hidden within the letters.
However, I'm not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for tsetse that I've seen before include "source of sleeping sickness" , "flies" , "African transmitter" , "bloodsucker" , "Disease-carrying fly" .)