Be charming coming in (8)
I believe the answer is:
entrance
'coming in' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for entrance that I've seen before include "Coming upon stage - fill with rapturous delight" , "Ingress" , "it's common, say, for some children to sit" , "Captivate on way in ?" , "foyer?" .)