Hating men putting quartz grains in boggy surroundings (8)
I believe the answer is:
misandry
'hating men' is the definition.
(I've seen this before)
'grains in boggy surroundings' is the wordplay.
'grains in' becomes 'sand' (I've seen this before. I am not sure about the 'in' bit.).
'boggy' becomes 'miry' (synonyms).
'surroundings' indicates putting letters inside.
'sand' inserted inside 'miry' is 'MISANDRY'.
'putting quartz' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for misandry that I've seen before include "hating men" , "Hatred of men" .)