Solutions

ACROSS
1 Not out.
N(OT+O)UT
5 Watchman.
W+ATCHM+A+N
9 Masterless.
(anag.)
10 Mold.
M+OLD
11 Lovelace.
L(O+V+EL)ACE
12 Circle.
CI(R)CLE (Cecil anag.)
13 Stop.
ST+O+P
15 Abstract.
ABS+TRACT
18 Sentinel.
SENT+IN+EL (le rev.)
19 Dash.
D+ASH
21 Menace.
ME+NACE (cane anag.)
23 Stagnate.
(anag.)
25 Iran.
I+RAN
26 Team spirit.
(anag.)
27 Preserve.
(two meanings)
28 Langer.
L+A+N+GER


DOWN
2 Otago.
O+TAGO (anag.)
3 On-the-spot.
(two meanings)
4 Threat.
TH(R+E)AT
5 Where Eagles Dare.
W+HER+E+EAGLES+DARE
6 Test case.
(anag.)
7 Homer.
(two meanings)
8 All Blacks.
ALL+BLACKS
14 the Terror.
THE+TERROR
16 Red ensign.
RED+ENSIGN
17 Ancestor.
(anag.)
20 Damsel.
DAM+SEL (Les rev.)
22 Agnes.
AG(N)ES
24 Trite.
T+RITE