Icy soil that could make farmer stop (10)
I believe the answer is:
permafrost
'icy soil' is the definition.
'permafrost' can be an answer for 'soil' (permafrost is a kind of soil). I'm not certain of the 'icy' bit.
'could make farmer stop' is the wordplay.
'could make' is an anagram indicator.
'farmer'+'stop'='farmerstop'
'farmerstop' anagrammed gives 'PERMAFROST'.
'that' acts as a link.
Can you help me to learn more?
(Other definitions for permafrost that I've seen before include "Ground never thawing" , "Hard layer" , "Ground frozen for a long time" , "feature of polar regions" .)