This is the 8290th most frequent Japanese word.
引っ掛かり
"引っ掛かり" means "a snag, hook, or obstacle; something to catch or hang onto."
Here, '引っ掛かり' refers to a snag or something that causes an interruption or difficulty in addressing the problem.
その問題には引っ掛かりがあった。
There was a snag in that problem.
In this sentence, '引っ掛かり' is used to denote a physical snag or catch on the fabric of clothing.
服に引っ掛かりができました。
A snag appeared on my clothing.
Here, '引っ掛かり' is used metaphorically to mean obstacles or points of concern within the plan.