Fine; steep (5)
I believe the answer is:
sheer
This clue is a double definition.
'fine' is the first definition.
(I've seen this before)
'steep' is the second definition.
(similar in meaning)
(Other definitions for sheer that I've seen before include "Outright" , "Precipitous or fine" , "Very fine or vertical" , "Utter - precipitous" , "Simple" .)