Central air-conditioners blowing to let out nasty A&E ‘odor’ (9)
I believe the answer is:
intrinsic
'central' is the definition.
(thesaurus)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for intrinsic that I've seen before include "Natural" , "Naturally belonging" , "Genuine" , "native?" , "Belonging by its very nature" .)