Tower officer is no vegetarian (9)
I believe the answer is:
beefeater
This clue might be a double definition.
'tower officer' is the first definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'no vegetarian' is the second definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'is' is the link.
Can you help me to learn more?
(Other definitions for beefeater that I've seen before include "no vegetarian?" , "Bodyguard of the British monarch" , "Yeoman warder of the Tower of London" , "Yeoman of the Guard; carnivore" , "Tower of London guard" .)