Boring specialist clothing (6)
I believe the answer is:
anorak
This might be a double definition.
'boring specialist' is the first definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'clothing' is the second definition.
(anorak is a kind of clothing)
Can you help me to learn more?
(Other definitions for anorak that I've seen before include "Trivia obsessive" , "trainspotter" , "good on most figures?" , "Boringly obsessive person" , "Boring type's coat" .)