Great clues as always- my mind was on the right wavelength today I think.
Here are my suggestions:
1. Very quickly takes a shine to donkey (4,5) LIKE SMOKE as in very quickly. Likes (takes a shine to) + Moke (donkey)
2. Sat about imbibing rum in conflict (2,4) AT ODDS- In conflict. Odd (rum) inside an anagram of sat (about is indicator)
3. Get away from place low in this vessel (7) VAMOOSE-Get away. Moo (low) in Vase (vessel)
4. Improvise tale about a guard for the hand on a lance (8) VAMPLATE- hand guard on lance. Vamp- improvise + an anagram of tale (about is indicator)
5. Wanting to have a woven fabric, I’m in Scotland (4,7) FORT WILLIAM- in Scotland. For (wanting to have) + Twill (woven fabric) + I Am (I’m)