What does the cryptic crossword clue "Who went to Hitler foolishly to concede victory? (5,2,3,5)" mean?

The wordplay uses an anagram. anagram of WHO + WENT + TO + HITLER = THROWINTHETOWEL The answer is THROWINTHETOWEL.

Who went to Hitler foolishly to concede victory? (5,2,3,5)

Daily Mail Cryptic #16926 | 2 Down | 2022-09-16 flower