Clue: Familiar eastern soft drink lacking colour (4)
Answer: PALE
Explanation: Definition: lacking colour
double wordplay: **PAL**="Familiar" plus **E**[astern]; **P**[iano]="soft" plus **ALE**="drink"https://en.wikipedia.org/wiki/Aglais_iohttps://en.wikipedia.org/wiki/Aglais_io