Academician put in danger rings London college (8)
I believe the answer is:
imperial
'london college' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'academician put in danger rings' is the wordplay.
'academician' becomes 'a' (this might be a standard abbreviation which I don't know about).
'put in danger' becomes 'imperil' (synonyms).
'rings' means one lot of letters goes inside another (some letters are ringed or contained by others).
'a' placed into 'imperil' is 'IMPERIAL'.
Can you help me to learn more?
(Other definitions for imperial that I've seen before include "Relating to empire" , "Majestic - not metric" , "Supreme, august; a beard" , "Like some rulers" , "Magnificent; small pointed beard" .)