Specialist in stopping admissions? (9)
I believe the answer is:
locksmith
'specialist in stopping admissions?' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for locksmith that I've seen before include "Security expert" , "Security worker" , "laughing stock" , "opener" , "Yale scholar" .)