She provides some excellent essays (5)

I believe the answer is:

tessa

'she' is the definition.

'some excellent essays' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'TESSA' is hidden in the letters of 'excellent essays'.

'provides' acts as a link.

(Other definitions for tessa that I've seen before include "Girl's name, forerunner of ISA" , "Woman" , "Girl's name; former savings account" , "Girl" , "Tax-exempt special savings account" .)

I've seen this clue in The Globe and Mail.

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