What does the cryptic crossword clue "Go out with anorak and jumper (8)" mean?

The definition is "jumper". The wordplay uses an anagram. anagram of GO + ANORAK = KANGAROO; definition: "jumper" The answer is KANGAROO.

Go out with anorak and jumper (8)

Independent Cryptic #1775 | 4 Down | 2024-03-03 flower