Across
1
21, islander branded with mark of failure? (7)
5
Gossip old PM cut short on voting system (7)
9
Only diaspora where outsiders lost in old kingdom (5)
10
21, suit-wearing sailor in khazi (9)
11
21’s valuation of staff? (10)
12
Belt out – repeatedly for 21? (4)
14
21’s suspicious behaviour (11)
18
21, 21 left chained by violent criminal (11)
22
Pain clear, case of hooligan off getting treatment (6,4)
25
Drilling, say, I tear into rocks (9)
26
Crack like that as it happens, one having split (5)
27
Pipe like mother installed in her ruin? (3,4)
28
Permanent nurse picking flower (7)
Down
1
Rules with leg before wicket, say, under review (2-4)
2
Element in God having broken that is (6)
3
Radio star on, stir crazy (10)
4
I see 21 served up some Mexican food (5)
5
Having various keys in pockets initially, only a lot for a screw? (9)
6
Some retrogressive yob’s accolade? (4)
7
Hot resin I left, tipped over (8)
8
Fire, new work unit is in essence gutted (8)
13
Evidently painful climbing in heels on stumbling in Alpine kit (10)
15
Lapse relating to account (9)
16
Stretch, and man gets punishment (8)
17
Legs welcoming pants, most intimately – those? (8)
20
Sin absent before arrest (6)
23
Group able to swim freely? (5)
24
A convict up for party (4)