By making a hamper vegetarian? (3)
I believe the answer is:
per
'by' is the definition.
(I've seen this in another clue)
'a hamper vegetarian' is the wordplay.
'PER' is hidden within the letters.
However, I am not sure how this is indicated.
'making' acts as a link.
Can you help me to learn more?
(Other definitions for per that I've seen before include "According to" , "Preposition indicating by means of" , "Preposition meaning for each" , "For each or every" .)