### Clue: Touchstone finds a way after resistance by Audrey at first (8)
### Answer: STANDARD 
 ### Explanation: Definition: Touchstone
 RD(abbrev. for "road";a way) **placed after**(after) [STAND(resistance, as in "Custer's last stand") **plus**(by) **the 1st letter of**(… at first) "Audrey " ].
Defn: Criterion by which to rate something/someone.