What is another word for plays it close to vest?
Pronunciation: [plˈe͡ɪz ɪt klˈə͡ʊs tə vˈɛst] (IPA) 
"Plays it close to vest" is an idiomatic expression that describes a person who is secretive or cautious in revealing information. Some common synonyms for this phrase include "keeping one's cards close to the chest," "holding one's cards close to the vest," and "playing one's cards close to the chest." Other similar phrases that convey a sense of discretion or guardedness include "being tight-lipped," "keeping mum," and "spinning a web of secrecy." In general, anyone who is said to "play it close to vest" is someone who values their privacy and prefers to keep their thoughts and intentions hidden from the public eye.
