I think barry 123 is a very clever answer but it states quite clearly on the Quizz that anagrams are in italics, and this isn't!! Oh my! - it's head-holding time!
I think you will find that this isn't a straight anagram. If it was, then the answer would simply be SEALS.
No, This is a reverse question where you have to provide the clue that leads to the answer given. In this case, the clue 'Performing seals' leads to the answer SALES