ACROSS
1. BIT outside ←FE← = BEFIT <suit>
4. <dog> DINGO = (...e)D IN GO(l...)
7. (THE CASH WRONG)* - W_ = SHORT-CHANGE <&lit>
8. C ASK = CASK <quantity of liquor>
9. <withdraw funding> DIVEST = DIVES + T
11. <spot of bother> SCRAPE = ←_E_ PARCS←
12. (...s)S CRY(s...) = SCRY <&lit>
14. (CHARISMA NON_)* = ANACHRONISM <dating blunder>
16. T after AUDI = AUDIT <inspection>
17. <short but meaningful> PITHY = PITY outside H

DOWN
1. ⭯USB⭯ = BUS <vehicle>
2. (FOR LOSER)* AND = FOOL'S ERRAND <wasted effort>
3. <carry> TOTE = TOT + _E
4. <perennial> DAHLIA = ←AIL HAD←
5. NO ND + ESC ⭯TRIP⭯ = NONDESCRIPT <having nothing to recommend it>
6. T inside OVERLY = OVERTLY <obviously>
8. <tropical tuber> CASSAVA = CAVA outside A S_S
10. _U_ PS HOT = UPSHOT <conclusion>
13. OM inside PP = POMP <ceremony>
15. <can> MAY = ←YAM←