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が気掛かり

be worried about

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phrase Rare #34,586
be worried about Marks the thing that is causing concern; often used with a person or situation as the subject.
JA: 母の健康が気掛かりです。
EN: I'm worried about my mother's health.

自分の将来が気掛かりだ。

I'm worried about my future.

トムの安否が気掛かりだ。

I'm worried about Tom's safety.

トムは友達のことが気掛かりだった。

Tom was worried about his friend.