Thanks again, Jolan for a great set of clues. Enormous fun.
Here are my attempts
1. Pinch of snuff, initially dry (5)
swipe?
Snuff initially – s + wipe (dry) = swipe to pinch?
2. Boasts of old relatives accommodating very active beginners (7)
avaunts?
Relatives – aunts with va (beginners of “very active”) gives “a va unts” = old word for boasts?
3. Remedial application of (hot) sand – another treatment to anoint ear (9)
arenation?
Anagram of “anoint ear” gives arenation – treatment with hot sand?
4. Weapon unearthed in Simla? This is quite likely (5)
lathi?
Lathi - old Indian stick is in the clue.
5. Orders to shoot? (6,6,6)
Lights, camera action?
Orders given prior to a cinema shoot?
Hope the vision is back to 20/20.
Thanks again.