The phrase "tricky deal" is correct and usable in written English.
It can be used to describe a situation or agreement that is complicated or difficult to navigate.
Example: "The negotiations were challenging, and we ended up with a tricky deal that required careful consideration."
Alternatives: "complicated agreement" or "difficult arrangement."
"It's a tricky deal," her coach, Don McCauley, said.
According to the Daily Telegraph, Falcao has spent the day in a hotel while super agent Jorge Mendes tries to complete a tricky deal.
The Republicans are trying to project two future speakers even though they cannot be sure future voters will retain the Republican majority needed to guarantee the tricky deal.
As a distributor of content Apple always has to negotiate with publishers for licenses – a tricky deal as the publishers suspect (rightly) that they are selling the family silver and undermining their own relevance.
The negotiators must now agree to a tricky deal involving simultaneous disarmament by the rebels and the withdrawal of Russian troops, along with a power-sharing arrangement between Mr Maskhadov's lot and the pro-Moscow Chechens, who are now panicking as they sense the political ground shifting.
"We think we can come up with something which is enough to convince the I.M.F. over the 12 billion euros," said one official, who had been briefed on the talks, "but on the other hand a comprehensive package involving the private sector is such a tricky deal that Sunday — and possibly the 11th — is far too optimistic".
Of course, tricky deals over the ownership of oil and the Nile waters must be negotiated before full independence.
And this is tricky -- just like assigning booths on the plaza is tricky, dealing with 100 tribes, many of whom have historical rivalries.
He is no stranger to pulling off tricky deals, including rescuing his company Hat Trick from near collapse and buying back a stake in the business from a venture capital firm.
In one of his last-minute radio interviews, Obama prepared the ground for Tuesday's defeat by stressing the tricky hand dealt by the Senate map this election cycle, which forced Democrats to defend seats in an unusually large number of red states.
Their trickiest deal came in 1998, when they teamed up with the Hancock Timber Resource Group to buy 278,000 acres of forest and wetlands along the Chesapeake Bay.
