Bachelor wearing smart watch chain (6)
I believe the answer is:
albert
'watch chain' is the definition.
(I've seen this before)
'bachelor wearing smart' is the wordplay.
'bachelor' becomes 'b' (abbreviation e.g. BA=Bachelor of Arts).
'wearing' is an insertion indicator.
'smart' becomes 'alert' (I can't justify this - if you can you should believe this answer much more).
'b' going within 'alert' is 'ALBERT'.
Can you help me to learn more?
(Other definitions for albert that I've seen before include "Queen Victoria's consort or Mr Reynolds, ex-taoiseach" , "M [MUSEUM] with 18 [VICTORIA]" , "Kind of watch chain" , "Prince with 24" , "German prince" .)