Put back material that's extracted from the earth (5)
I believe the answer is:
mined
'extracted from the earth' is the definition.
I can't judge whether this defines the answer.
'put back material' is the wordplay.
'put back' shows that the letters should be reversed in order.
'material' becomes 'denim' (type of fabric).
'denim' written backwards gives 'MINED'.
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for mined that I've seen before include "Extracted minerals from the earth" , "Dug for minerals, say coal" , "Sought diamonds?" , "proceeded secretly" , "Excavated as for coal or diamonds" .)