إِنَّكَ لَا تَهْدِي مَنْ أَحْبَبْتَ
You do not guide [to inward acceptance] whomever you love. (Qur'an 28:56)
One verse affirms guidance of the Prophet ﷺ while this verse denies it. There is no contradiction: the affirmation concerns directing others toward the true path, while the denial concerns independently bringing about inward acceptance.
The distinction identifies two meaningful uses of the same expression. Context matters: not every verse on guidance means mere explanation, nor does denying independent creative power to the Messenger diminish his actual mission of teaching and invitation.