Clever trick group conjured up in cells (7)

I believe the answer is:

gametes

I'm a little stuck... Click here to teach me more about this clue!

'cells' is the definition.
(gamete is a kind of cell)

I can't explain the remainder of the clue.

(Another definition for gametes that I've seen is " Cells".)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.