What does the cryptic crossword clue "A gross I counted, sold (9)" mean?

The definition is "sold". The wordplay uses an anagram. anagram of A + I + COUNTED, = AUCTIONED; definition: "sold" The answer is Auctioned.

A gross I counted, sold (9)

Telegraph Prize Cryptic #3034 | 11 Across | 2019-12-15 flower