Scope provides almost perfect sight (7)

I believe the answer is:

purview

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'scope' is the definition.
(I know that purview is a type of scope)

'almost perfect sight' is the wordplay.
'almost perfect' becomes 'pur' (I can't justify this - if you can you should give a lot more credence to this answer).
'sight' becomes 'view' (synonyms).
'pur'+'view'='PURVIEW'

'provides' is the link.

Can you help me to learn more?

(Other definitions for purview that I've seen before include "... experience range" , "Scope, range" , "Compass, range" , "Range of thought" , "Ken" .)

I've seen this clue in The Irish Times.

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