Stone tools obtained from the soil (7)
I believe the answer is:
eoliths
'stone tools obtained' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'from the soil' is the wordplay.
'from' indicates an anagram (from the letters).
'the'+'soil'='thesoil'
'thesoil' is an anagram of 'EOLITHS'.
Can you help me to learn more?
(Other definitions for eoliths that I've seen before include "Early stone implements" , "Rocks" , "Stones" , "Old stone tools" , "Pieces of flint" .)