Fronts for thieving racketeers announce massive price hike (5)
I believe the answer is:
tramp
'hike' is the definition.
(I know that tramp is a more specific form of hike)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tramp that I've seen before include "Ship, possibly" , "Attack with knife" , "Walk noisily; vagrant" , "cargo-boat" , "Itinerant" .)