What does the cryptic crossword clue "New tech promo, one not carrying a lot of weight (9)" mean?

The wordplay uses an anagram. anagram of TECH + PROMO, = ECTOMORPH The answer is ECTOMORPH.

New tech promo, one not carrying a lot of weight (9)

Times Cryptic #28680 | 12 Across | 2023-08-12 flower