がきく

work; be good at

→ が
phrase Rare #20,925
work; be good at Used after a noun to describe something functioning or lasting well, or someone having a good sense for something. The meaning depends on the noun: 保存がきく means “keep well,” while 目がきく means “have a good eye.”
JA: この店は融通がきく。
EN: This shop is flexible.

この綿の靴下は洗濯がきく。

These cotton socks are machine-washable.

この肉は保存がきく。

This meat keeps well.

じゃみんなに顔がきくのか?

So, you have connections with everyone?

— Article 15 (2019)

彼は宝石の鑑定には目がきく。

He has a discerning eye for evaluating gemstones.

彼はこのあたりの店では顔がきくんだ。

He’s well-known at the shops around here.