Utter misery to stop for… (4)
I believe the answer is:
whoa
'stop for' is the definition.
'whoa' can be an answer for 'stop' (I've seen this in another clue). I am not sure about the 'for' bit.
'utter misery' is the wordplay.
'utter' indicates a 'sounds like' (homophone) clue (I've seen 'uttered' mean this).
'misery' becomes 'woe' (woe is a kind of misery).
'woe' sounds like 'WHOA'.
'to' is the link.
Can you help me to learn more?
(Other definitions for whoa that I've seen before include "halt" , "The King of rock and roll" , "Call to stop" , "Instruction to a horse to stop" , "horsy expression?" .)