引っ掛かる (ひっかかる)to be caught in; to be stuck in; to stop by

to be caught in; to be stuck inGodan verb with 'ru' ending, intransitive verb
to stop by; to drop in for a short visit; to be delayedGodan verb with 'ru' ending, intransitive verb
to get mixed up in (trouble); to get entangled in (a problem); to be involved withGodan verb with 'ru' ending, intransitive verb
to fall for (a trick); to be deceived; to be cheatedGodan verb with 'ru' ending, intransitive verb
to be on one's mind; to worry one; to be bothered byGodan verb with 'ru' ending, intransitive verb
to be obstructed; to be hinderedGodan verb with 'ru' ending, intransitive verb

引っ掛かる, its kanji, and other words that share them.Open this graph

Kanji in 引っ掛かる

取引とりひきtransactions; dealings
引き上げひきあげpulling up; drawing up
引き下げひきさげreduction; cut
引退いんたいretirement
強引ごういんoverbearing; coercive
隠し引き出しかくしひきだしsecret drawer; hidden drawer
割引わりびきdiscount; reduction
引き続きひきつづきcontinuously; continually
切っ掛けきっかけchance; start
追っ掛けるおっかけるto chase; to run after
仕掛けしかけdevice; contrivance
呼び掛けよびかけcall; appeal
手掛かりてがかりclue; lead
掛け声かけごえshout (of encouragement, etc.); yell (used to time or encourage activity, e.g. "Heave ho!")
呼び掛けるよびかけるto call out to; to hail
掛け金かけきんinstallment; instalment

See how 引っ掛かる connects to the rest of Japanese.