The phrase "a sort of implicit" is correct and usable in written English.
It can be used when describing something that is not explicitly stated but is understood or suggested.
Example: "There is a sort of implicit agreement between the two parties that they will collaborate on the project."
Alternatives: "a kind of unspoken" or "a type of tacit".
He took it as a sort of implicit downgrade of his country.
Those appointees have to run for the office eventually, but they get to run as incumbents, raise money as incumbents and use their appointments as a sort of implicit endorsement by the state's top Republican officeholder.
That Stemme gave such a lustrous and controlled reading of all her act three music seemed like a sort of implicit protest against the cheap grimness of this production.
In the past, there was a general understanding, a sort of implicit clause in the rules of American politics, that major parties would at least pretend to distance themselves from irrational extremists.
And let's not forget that Ms. Burton is the daughter of the great Welsh actor Richard Burton, making the whole a sort of implicit tribute to the family roots.
In a sort of implicit contract, many tour operators donate between $3 and $5 per tourist to some of the churches that welcome visitors by the busload; that can easily mean tens of thousands of dollars in extra revenue each year for some congregations.
A label like gaming prompts all sorts of implicit associations like entertainment and fun, while a label like gambling can prompt seedier implicit associations like crime," write Kathy LaTour, associate professor of services marketing at the Cornell School of Hotel Administration, and Ashlee Humphreys of Northwestern University's Medill School of Journalism.
And in 2016, a governor may be best suited to offer the sort of implicit contrast that candidates often want to make with the last president from their party.
As a reward they will have first call on the credit markets, with the same sort of implicit guarantees that once so benefited Fannie and Freddie.
And that general cooperation can be achieved only under some sort of implicit or explicit enforcement system.
