Cut hair whimsically and cause anguish (8)
I believe the answer is:
distress
'anguish' is the definition.
(I've seen this before)
'cut hair whimsically and' is the wordplay.
I cannot really see how this works, but
'hair' could be 'tress' (tress is a kind of hair) and 'tress' is found within the answer.
The remaining letters 'dis' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'cause' acts as a link.
Can you help me to learn more?
(Other definitions for distress that I've seen before include "Unhappiness" , "State of suffering" , "Mayday is such a signal." , "Anguish - trouble - danger" , "Psychological suffering" .)