It's rough to turn up with a blind trio (6)
I believe the answer is:
pumice
'it's rough' is the definition.
I can't judge whether this definition defines the answer.
'turn up with a blind trio' is the wordplay.
'turn' says the letters should be written in reverse.
'with' is a charade indicator (letters next to each other).
'a blind trio' becomes 'mice' (I've seen this in another clue).
'up' in reverse letter order is 'pu'.
'pu'+'mice'='PUMICE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for pumice that I've seen before include "Volcanic stone used as abrasive" , "Porous lava" , "Light form of solidified lava" , "Volcanic-rock scourer" , "Solidified lava used as an abrasive" .)