Cryptic across
6 1 coming from Lindisfarne, after the Great North Road, goes by the book (5)
7 Benjamin’s place in chat show is to engage host from the outset (6)
9 Fringe characters on both sides chew the fat (4)
10 Runs rings around artist with a rocking trio making the music (8)
11 Ancient Mediterranean-types, one Hispanic, getting involved (11)
13 Conversion of harem, blow to apostle (11)
15 NT port’s ‘retired’ pocket accommodates a drug zone (8)
17 Sad number, in retrospect, ignore final letter of crossword definition... (4)
18 ...therefore clue’s contained in an alien code (6)
19 Grand occasion at the close of festival for Jeduthun’s progeny (5)