Were such coins pirated or parroted? (6,2,5)
I believe the answer is:
pieces of eight
'were such coins pirated' is the definition.
(coins often mentioned in pirate stories)
I don't understand the rest of the clue.
(Other definitions for pieces of eight that I've seen before include "In old money" , "Old Spanish coins - Long John Silver's parrot's cry" , "2 and 6 perhaps" , "Old Spanish silver coins" , "Old coins; '---!' (Long John Silver's parrot)" .)