tipster

noun

1. A person who provides tips or advice to others, for example on the form of racehorses or the stock market.
2. (informal)One who provides tips or hints on how to succeed at a game.

   “Absent from the pages of CRASH for a year, ex-tipster Robin Candy returns and puts finger to key to debate the state of the games software industry.”

   “Those are the two choice words top tipster Rich Pelley used to describe the monthly helpathon that is the one and only COMPLETE CONTROL.”

   “Does anybody know what Jon Riglar is doing now? (SU Tipster for about 6 years - Zapchat!).”