Workaround by artful gent is welcome (9)
I believe the answer is:
greetings
'is welcome' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for greetings that I've seen before include "Expressions of goodwill on meeting" , "Words of welcome" , "Salutations" , "Welcomes; regards" , "Kind of card" .)