Angry after 1000 sinks getting article for plug supplier (5)
I believe the answer is:
adman
'plug supplier' is the definition.
(someone supplying plugs or advertisements)
'angry after 1000 sinks getting article' is the wordplay.
'angry after a000 sinks getting' becomes 'adm' (I can't explain this - if you can you should give a lot more credence to this answer).
'article' becomes 'an' (indefinite article).
'adm'+'an'='ADMAN'
'for' acts as a link.
(Other definitions for adman that I've seen before include "Worker in commercials" , "promoter" , "Commercial publicist" , "persuasive type" , "Someone involved in commercial promotion" .)