Solutions

ACROSS
1 Beaver.
(two meanings)
4 Brothers.
BR+OTHER+S
9 Cotton.
(two meanings)
10 Comanche.
(anag.)
12 Sire.
(two meanings)
13 Total.
(two meanings)
14 Nile.
NI+LE (in rev.)
17 Deliberation.
DE+LI(B)E+RATION
20 Eugene Onegin.
E+UGENE ONEGIN (ingenue gone anag.)
23 Anon.
(c)ANON
24 Paton.
PAT+ON
25 Tote.
T+OT+E
28 Lothario.
LOTHA+RI+O (loath anag.)
29 Repair.
(two meanings)
30 Starting.
S(TAR)TING
31 Stated.
STATE+D


DOWN
1 Backside.
BACK+SIDE
2 After all.
AFT+ERA+LL
3 Eros.
EROS (sore rev.)
5 Room at the Top.
ROOM+A+T+THE+TOP (moor rev.)
6 Team.
T(EA)M
7 Euclid.
EUCL+I+D (clue anag.)
8 Sweden.
SW(ED)EN (news rev.)
11 Poor relation.
POOR+RELATION
15 About.
A+BOUT
16 Sound.
(two meanings)
18 Ignorant.
I+G(N+O)RANT
19 Endeared.
E+NDEA+RED (dean anag.)
21 Naples.
NAPLE+S (plane anag.)
22 Portia.
PORT+I+A
26 Want.
WAN+T
27 Felt.
(two meanings)