Snoops, possibly during lessons (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
noses
'snoops' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for noses that I've seen before include "Snouts" , "Beaks, conks" , "Facial features" , "Schnozzles" , "Olfactory organs" .)