Summary of prices? (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
precis
'summary' is the definition.
(I know that precis is a type of summary)
'of prices?' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'prices' anagrammed gives 'PRECIS'.
(Other definitions for precis that I've seen before include "Prices for abbreviated version" , "Cripes, what a summary!" , "Sketchy summary" , "Digest - summary" , "Summary, short version" .)