Crossword Genius

Angry about a dunderhead (3)

Ross

I believe the answer is:

red

'angry' is the definition.
(someone may go red when angry)

'about a dunderhead' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'a dunderhead' becomes 'd' (head letter of 'dunder').
're'+'d'='RED'

(Other definitions for red that I've seen before include "A colourful communist" , "'If you see it, perhaps you're angry (3)'" , "Florid" , "Crimson" , "Merchant flag" .)

I've seen this clue in the Evening Standard.
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.