There are some grand old words in this puzzle, and the interlock is something grand also.

1 2 3 4 5 6 7 8 91011
12 13 14
15 16 17 1819
20
21 22 2324 25 26 27
28 29 30
313233 3435 36
37 38 39
40 41 42 4344
45 4647 48
4950 51 5253 54
55
56 57 5859 60 61 62
63 64 65
66 67 68

[[48]]

HORIZONTAL

1 African antelope 5 By means of 8 Stop 12 Beam 13 Impenetrably hard 14 Secure 15 Adversary 17 Write 18 Produce 20 Woolen material 21 Distribute 24 Female deer 25 Viscous matter of a cell 28 Chalky chemical substance 30 Fracas 31 Preposition 33 Annoy 35 Rhymed composition 36 Live 37 Natural 38 Pendent 39 Edge 40 One 41 Imitated 42 Trimming 44 Suffice 45 Journey 47 Patent 49 Eschew 51 Touch 53 Faith 55 Wanting 56 A drug 59 Be indisposed 60 Matchless 63 Liquid refreshment 64 Malady of the brain 65 Period of time 66 Dropsy 67 Part of verb “to be” 68 Inscription-bearing stone

VERTICAL

1 Before 2 Cut 3 Affirmative 4 Between dawn and evening 5 Essay 6 Boil (Archaic) 7 Roam 8 Filthy place 9 Consumed 10 Sways rhythmically 11 Guided 16 Back tooth 19 Mohammedan world 21 Mode of scenic representation 22 Near 23 Slid 25 Take inconsiderately 26 Affirmative 27 Titanic 29 Used in golf 30 Large volume 32 Cooling device 34 Remnant 35 Domestic animal 36 Assistant 41 Spring up 43 Hazard 45 Toward 46 Basket 48 Negative 50 Sound 51 Headdress 52 Beat 54 Pertaining to sounds 56 Span of time 57 Single 58 Health resort 60 Beast of burden 61 Poem 62 Scrutinize