[nologgie]

From 1e PHB

Readable status spells (Require designer incorporation of options)
Comprehend Languages (M1)
Tongues (C4, M3)
Speak With Dead (C3) (maybe)
Speak With Monsters (C6) (maybe)

Specab Spells
Water Breathing (D3, M3) (Immune to Damage Type - Drowning)
Airy Water (M5) (Immune to Damage Type - Drowning, Area)
True Seeing (C5) (Specab, includes det traps, see invisible)
Control Temperature 10' Radius (D4) (Resistant to Heat/Cold)
Spider Climb (M1) (Thief - Climb Walls)

Self Casting Specab(?) (While memorized, until used)
Feather Fall (Immune to Damage Type - Falling/Gravity)

More Straightforward Spells

Cleric Level 1
Remove Fear

Cleric Level 3
Animate Dead (If workable)
Glyph of Warding (If workable)

Cleric Level 5
Plane Shift (for dumping opponents)

Cleric Level 6
Word of Recall (If workable)
Conjure Animals

Cleric Level 7
Gate? (If workable)
(Un)Holy Word

Druid Level 1
Detect Snares & Pits
Shillelagh (If workable)

Druid Level 2
Fire Trap (If workable)
Heat Metal (variant)

Druid Level 3
Snare
Summon insects

Druid Level 4
Hold Plant
Produce Fire (damage aspect)
Protection From Lightning

Druid Level 5
Anti-Plant Shell
Snakes to Sticks
Wall of Fire

Druid Level 6
Anti-Animal Shell
Fire Seeds

Druid Level 7
Animate Rock (Golem-ish)
Creeping Doom
Finger Of Death
Fire Storm

Mage Level 1
Identify (If it can cost 1 gem or 100gp pearl)

Mage Level 2
Web
Wizard Lock (If workable)

Mage Level 4
Enchanted Weapon (If Shillelagh works)
Rary's Mnemonic Enhancer (If workable)
Fire Trap (as D2)

Mage Level 5
Animate Dead
Conjure Elemental

Mage Level 6
Anti-Magic Shell
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I like passwall, Rock to Mud, & Dig for dungeon use.
Walls of Iron, Stone, and Force are great for camping.
Unfortunately, I don't see how to incorporate them.