Exposed rock cut with poor rocks (7)
I believe the answer is:
outcrop
'exposed rock' is the definition.
(I've seen this before)
'cut with poor rocks' is the wordplay.
'with' is a charade indicator (letters next to each other).
'rocks' is an anagram indicator.
'cut' after 'poor' is 'poorcut'.
'poorcut' with letters rearranged gives 'OUTCROP'.
(Other definitions for outcrop that I've seen before include "Surface eruption of rock" , "Cop tour around projecting layer of rock" , "Rocks appearing at the surface" , "Visible rock formation" , "Exposed rock formation" .)