Educational organisation provides no cues during reformation (6)

I believe the answer is:

unesco

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'educational organisation' is the definition.
'unesco' can be an answer for 'organisation' (UNESCO is an example). I'm not certain of the 'educational' bit.

'no cues during reformation' is the wordplay.
'no cues' anagrams to 'UNESCO'.
But, I am not clear how the anagram is indicated.

'provides' acts as a link.

Can you help me to learn more?

(Other definitions for unesco that I've seen before include "International agency -- no cues (anag)" , "United Nations agency that promotes education etc" , "worldwide organisation" , "United Nations agency to promote education etc" , "World cultural and educational organisation" .)

I've seen this clue in The Irish Times.

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