Eg Raeburn's characteristic is encapsulated by wine (11)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

TRAIT (characteristic) + IS contained [encapsulated] by PORT. Did not solve. Simple enough wordplay but since I hadn’t the remotest idea who or what Raeburn might be I had no clue as to the  meaning of the word I was looking for. Sir Henry Raeburn (1756 – 1823). The only one I knew of was an agony aunt on Capital Radio in the 1970s.