Polishing off treat in guesthouse, furtively (6)
I believe the answer is:
eating
'polishing off' is the definition.
(I've seen this in another clue)
'treat in guesthouse furtively' is the wordplay.
'EATING' is hidden within the letters.
However, I am not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for eating that I've seen before include "Putting away" , "Taking in solid food" , "Having supper?" , "Out to dinner?" , "Ingestion" .)