Thanks to Monk for a wonderful Armistice Day puzzle. Reliably fun, witty and challenging.
There are other words that could be theme related, but I’ve highlighted the overt connections.

R (roger) pursues GREE[n] (immature, curt)
Germaine Greer, Australian feminist icon
LEAF (movable bit of table) + “ROLE” (part, “articulated”)
Leaf roll is a virus that affects crops, for example potatoes, or Murphys as they are sometimes called
(IS + T (tense)) in CRIMEA* (*chaotic)
Before P[art]Y (on vacation); POP (swallow)
DEN (study) + BE< (to take place, <about)
Deneb is part of the constellation Cygnus
(PRETEEN + [be]A[ch] [b]U[m] (essentially))* (*rocking)
Euterpe is the Greek muse of music
SCAR (mark) interrupts MA (mum) + A[pply] (beginning to)
O (round) + PUNT (flat-bottomed boat) crossing L (lake) with E (earl)
RE (concerned with) + (LINE (policy) adopted by C[onsume]R (fringes of) + S (society))
D[ismantl]E (without stopping) + COR (my)
‘Stopping’ in the sense of ‘filling’
PRE[y]’S (victim’s, putting forward Y (unknown))
A[ttract] R[eaders] (starts to) in ROW< (dispute, <about) + WILD* (*cuckoo)
O (nothing) stops ROME[o] (ardent lover, short) embracing MAT (dull)
[au]THOR N[obly] (accommodates)
Thorn (þ) is an ancient Germanic letter
(SINGLE M[u]M (heartlessly))* (*tormented)
SORE< (severely, <upset)
Eros features as a statue in Piccadilly Circus, London
(TU LEGACIES)* (*affected)
TA (cheers) on K[arate] E[xperts] (in first places)
W (with) + (UPROAR AND)* (*posturing)
PALE< (fence, <northern) on SE (a bearing of 135 degrees, south east)
In DRAG; U (uniform, NATO alphabet) (<bowled over)
I imagine the ‘guard’ is a train guard, i.e. a guard on the line
“SIGNET” (seal, “caught”)
BRA (supporter) + V (very) + I (independent) + (O (old) + MISS (spinster))< (<stood up)
RUSTLER* (*running) around O (ring) + E.G. (say)
MAR (spoil) + [quie]T [pick]Y [meat-eate]R (ultimately)
I think the ‘with ham’ element is just for the surface
A LOT (frequently) topped with (C[h]E[e]S[e]* (odd bits of, *runny) and H (hot))
(FOR + AC (account))<, <picked up); E (electronic) charges
“RAIN” (showers, “in report”)
Double definition
[man]DATE (instruction, to sack MAN (servant))