Coffee Break Cryptic

6 July

Across

1 Old man's time is tense (4)
3 Able rise? That's wrong for one who lets himself down (8)
9 Do alter unusually tight-fitting garment (7)
10 Leading characters in rifts (5)
11 Short letters from Battersea (5)
12 Very keen shooter - he's foremost in game (4-2)
14 Missing seaman dispatched (6)
16 Heavyweight with boy or girl (6)
19 Country that could provide us with sari? (6)
21 What thief does in police stations? (5)
24 Bear I had trapped in Lincoln? (5)
25 Stream must be present (7)
26 Noise made when stealing cattle? (8)
27 Island that sounds like heaven (4)

Down

1 Like a grand house - one in La Plata, possibly (8)
2 Search thoroughly to find first bit of custard in tart (5)
4 Chap, for example, with a wine store (6)
5 Small and delicate female in river standing up (5)
6 Charles chopped trees (7)
7 Legal documents, reportedly, for eminent hotelier (4)
8 Provide accommodation for kid (4,2)
13 Estate in trouble with liqueur (8)
15 It's used in a new form for scholastic work (7)
17 Interior coverings for ships (6)
18 Tintin's dance? (6)
20 Short period of enchantment (5)
22 Verify the squared pattern (5)
23 Barber will take care of this musical (4)