Examine neckwear or underwear (8)
I believe the answer is:
'or underwear' is the definition.
I can't tell whether this definition defines the answer.
'examine neckwear' is the wordplay.
'examine' becomes 'scan' (scanning is a kind of examining).
'neckwear' becomes 'ties' (I've seen this in another clue).
Can you help me to learn more?
(Other definitions for scanties that I've seen before include "Skimpy knickers" , "Women's underwear (informal)" .)