Tossed Salad solution
by Kegler

The shaded diagonals spell out READ THE CLUES' FIRST LETTERS.  Those, in turn, spell out REPEAT FRUIT'S
FIRST LETTER AND ANAGRAM TO FORM A NEW WORD.  Accordingly, the eight wordplay-only clues yield
names of fruits; the resulting entries are shown in curly brackets in the parsings and are highlighted in the answer grid.
The two “loose” cases are 11D and 32D, since the “anagramming” doesn't change the order of the letters in the fruit.

Tossed Salad solution grid

Across
1RA(P)IDS
5CO + COASt
9MEL + T
10MICA (hidden)
12MAN + GOes {GAMMON}
13OMEGA (hidden)
14LIN(D)EN
15CA + T,G + UT
17SE(P)T
19T + EASE
20EOLITH (THE OIL anag)
22lEARNED
24AP + P,L + E (PA rev) {APPEAL}
28RECITAL (ARTICLE anag)
31COP + R + A
34NOSE ("KNOWS" hom)
35FILL-UP (PULL IF rev)
36ARRAS (hidden)
39P,R + UNE {PRENUP}
41ASTRONOMER (RENTS A ROOM anag)
42FO(L for R)K
43SUBTYPES (BY UPSETS anag)
Down
2AEGIS (hidden)
3P(L)ANE
4DIM + E
5C + IN + CH
6CAMe
7O + RANGE {OREGANO}
8ARGU(S)ES
9LIME (EMIL rev) {MILLE}
10MO(N)TH
11D.A. + TE {DATED}
16TERM (hidden)
18PIE (odd letters)
21O + PEN
23AN + C(I)ENT
24mARIA + S
25LAM + P
26ELF (FLEw rev)
27P.E. (A) + R {PAPER}
29CO(R)AL
30TES TeS (SET rev twice)
32PLUMe {PLUMP}
33RUPE + E (PURE anag)
37R(I)O (OR rev)
38A + S + K
40ROB (2 defs)