Silver and such like? One investigates prices (7)
I believe the answer is:
pirates
'like? one investigates prices' is the definition.
I can't judge whether this definition defines the answer.
'silver and such' is the wordplay.
'silver' becomes 'pirate' (Long John Silver in the novel Treasure Island).
'and' is a charade indicator (letters next to each other).
'such' becomes 's' (this might be a standard abbreviation of which I'm unaware).
'pirate'+'s'='PIRATES'
Can you help me to learn more?
(Other definitions for pirates that I've seen before include "More than one brigand" , "felons found in craft?" , "Buccaneers" , "Copies" , "Chatters, talks foolishly" .)