Read how to make purees (6)
I believe the answer is:
peruse
'read' is the definition.
(I've seen this before)
'to make purees' is the wordplay.
'to make' is an anagram indicator.
'purees' anagrammed gives 'PERUSE'.
'how' is the link.
(Other definitions for peruse that I've seen before include "'Read through, browse (6)'" , "Thoroughly examine" , "Read attentively" , "Look over" , "Examine at length" .)