Part of a tennis match

SET

It’s what you win six games to claim in tennis before moving closer to victory.

In tennis, a match is divided into smaller sections called sets, which are groups of games. The clue is a straightforward definition—no wordplay or tricks—since "set" is the official term for this part of a match. If you're familiar with tennis scoring, you'll know players compete to win sets (usually best of three or five) to take the match. The answer fits perfectly as the standard term for this division.