Across
6 Compare initially with little I know (5) LIKEN
7 All there is in one poem (8) UNIVERSE
10 Finally secret agent got new line (7) TANGENT
11 Rush back with egg of animal (3,4) ROE DEER
12 It's produced in the Islets of Langerhans (7) INSULIN
13 Our neighbour converts many in a month (7)
14 Played Salsa loudly for a festival (3,5,3)
19 Got up, had a feeling which is overly optimistic (7)
21 With fastness managed this language (7)
23 It's a nuisance to keep writing to a sibling (7)
25 Medicine covers rules, essentially (7)
26 I roam all around this American city (8)
27 Rallying point for a dark novel (5)
Down
1 Continental border to check bovine paralysis (8)
2 Make it tough for a boy to support a girl (6)
3 Draw one into conversation — however not over fault (10)
4 Pioneer — individual went and landed here (4)
5 Voiced agreement over players reputation (6)
6 Almost dead, going through the country (6)
8 The French dream about Beryl (7)
9 Ten million rupees in the centre (5)
13 Two fellows — say, a hero, and a villain (10)
15 Hide article in King's possession (7)
16 Luke and Mary made to cover heads (8)
17 Inducement makes Bible change hands (5)
18 Close attention please! (6)
20 Money in account for rainy.... (6)
22 ....roving pairs check depth in parts of river (6)
24 Take time off to sing by the stream (4)
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