The word(s) "clear" appears 174 time(s) in 168 verse(s) in Quran in Abdullah Yusuf Ali translation.

(151) Those who reject Allah, hinder (men) from the Path of Allah, and resist the Messenger, after Guidance has been clearly shown to them, will not injure Allah in the least, but He will make their deeds of no effect.

(152) Hasten ye then (at once) to Allah: I am from Him a Warner to you, clear and open!

(153) And make not another an object of worship with Allah: I am from Him a Warner to you, clear and open!

(154) With goblets, (shining) beakers, and cups (filled) out of clear-flowing fountains:

(155) We sent aforetime our messengers with clear Signs and sent down with them the Book and the Balance (of Right and Wrong), that men may stand forth in justice; and We sent down Iron, in which is (material for) mighty war, as well as many benefits for mankind, that Allah may test who it is that will help, Unseen, Him and His messengers: For Allah is Full of Strength, Exalted in Might (and able to enforce His Will).

(156) Those who resist Allah and His Messenger will be humbled to dust, as were those before them: for We have already sent down clear Signs. And the Unbelievers (will have) a humiliating Penalty,-

(157) There is for you an excellent example (to follow) in Abraham and those with him, when they said to their people: "We are clear of you and of whatever ye worship besides Allah: we have rejected you, and there has arisen, between us and you, enmity and hatred for ever,- unless ye believe in Allah and Him alone": But not when Abraham said to his father: "I will pray for forgiveness for thee, though I have no power (to get) aught on thy behalf from Allah." (They prayed): "Our Lord! in Thee do we trust, and to Thee do we turn in repentance: to Thee is (our) Final Goal.

(158) And remember, Jesus, the son of Mary, said: "O Children of Israel! I am the messenger of Allah (sent) to you, confirming the Law (which came) before me, and giving Glad Tidings of a Messenger to come after me, whose name shall be Ahmad." But when he came to them with clear Signs, they said, "this is evident sorcery!"

(159) That was because there came to them messengers with clear Signs, but they said: "Shall (mere) human beings direct us?" So they rejected (the Message) and turned away. But Allah can do without (them): and Allah is free of all needs, worthy of all praise.

(160) So obey Allah, and obey His Messenger: but if ye turn back, the duty of Our Messenger is but to proclaim (the Message) clearly and openly.