"clandestine plan" is a correct and usable phrase in written English.
You can use it when you want to refer to a plan that is hidden or kept secret. For example: "The two friends worked together on a clandestine plan to surprise the birthday boy."
Although just recently announced to the community of John Jay schools, this clandestine plan has been in the making for some time.
The National Rifle Association NRAA) has long fueled a conspiratorial fear that any kind of record keeping is always the first step in the government's clandestine plan to create a national registry of guns and, ultimately, total civilian disarmament.
Devise a clandestine plan.
What followed on from their meeting was an intense year and a half of clandestine planning in Mexico City, followed by two years of brutal war in the Cuban mountains.
Heady moments of clandestine planning lead to thrilling acts of subversion as the janitors disrupt a power lunch and crash a moment of corporate self-congratulation with roaring vacuum cleaners as real-life movie stars look on.
When he was in power, the United States carried out secret negotiations to open up China -- important members of the Nixon cabinet were kept in the dark -- as well as covert military operations against Cambodia and clandestine plans to overthrow Salvador Allende in Chile.
Known as an original thinker in the computer science world, Mr. Morris also played an important clandestine role in planning what was probably the nation's first cyberwar: the electronic attacks on Saddam Hussein's government in the months leading up to the Persian Gulf war of 1991.
This time the younger Bush administration hadn't even bothered to consult the Turks on the operation, while the Turkish military was perfectly aware of clandestine U.S. co-planning with the Iraqi Kurds.
This makes the new bunker a novel find, both for its isolation and fortification (it has 10-foot-thick walls and a watchtower on a hill ), which suggest that before the Nazis knew they had sympathizers in the region, they were already planning clandestine doomsday getaways farther out into the jungle than anyone thought before.
Drugstore chains filed a lawsuit in July, arguing that the plan was "clandestine and unlawful" because federal officials did not plan to pay for the discounts.
The message was hesitant, clandestine and suggestive of plans for a future liaison: "Couldn't call.
