The phrase "a sort of fifth" is correct and usable in written English.
It can be used when describing something that resembles or is similar to a fifth element or category, often in a metaphorical or abstract sense.
Example: "In this new composition, the melody introduces a sort of fifth that adds depth to the harmony."
Alternatives: "a kind of fifth" or "a type of fifth".
MacArthur still rides over the Pentagon like a sort of fifth horseman of the Apoclaypse.
Zimbabwe have placed a sort of fifth slip for Trescothick to cut off that new nibble of his third man.
Marine, as everyone in France refers to her, has said that Houellebecq's alarmist fantasy impressed her as entirely plausible, and the left-of-center daily newspaper Libération greeted the book with an essay damning Houellebecq as "the Le Pen of the Café de Flore," a sort of fifth columnist for the National Front, sneaking far-right politics into the heart of Left Bank literary culture.
And the underlying fear that provokes violent Sunni resistance is no longer of becoming an American colony, but of being swamped and politically marginalised by the 60% Shia majority, which is supported by non-Arab Iran.Among a growing number of extremist Sunnis, there is a further fear, which is that Shias are a sort of fifth column, whose historical mission it is to undermine the faith.
So perhaps Crouch's concept of "the guide" offers us a sort-of third way, one in which theatre makers don't have to make a brutal and sometimes impossible choice between pandering and patronising.
It's been called bad because it appears to be a truncated, unauthorized version of the play-a sort of seventeenth-century bootleg.
Ms. Parker does indeed describe that bell krater as "a sort of fifth-century B. C. E. fashion spread"; and, at one point, she notes an early example of fashion as a status symbol, depicted in necklaces in Benin plaques from the 16th and 17th centuries.
Ms. Chlumsky turns up as a sort of third point in a semi-romantic triangle.
That night I was on a sort of second-line "anything else" kind of alert.
Now I'm in the game, a sort of first-person sci-fi shooter.
One of these, "Winter Dreams", he later described as "a sort of first draft of the Gatsby idea".
