Crossword Genius

Mixing lab acid with oil could be fiendish (10)

Ross

I believe the answer is:

diabolical

'be fiendish' is the definition.
(synonyms)

'mixing lab acid with oil' is the wordplay.
'mixing' is an anagram indicator.
'with' means one lot of letters go next to another.
'lab'+'acid'='labacid'
'labacid' put after 'oil' is 'oillabacid'.
'oillabacid' with letters rearranged gives 'DIABOLICAL'.

'could' is the link.

(Other definitions for diabolical that I've seen before include "Absolute" , "shocking" , "Devilish" , "Disgraceful" , "Fiendish" .)

I've seen this clue in The Sunday Times and The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.