single-issue

Translations
посвящённый одному вопросу
сосредоточенный на одной проблеме
однопроблемный
Definitions
Concerned with, addressing, or focused on only one issue, topic, or problem.
Concerned with or motivated by only one political issue, especially of a voter, group, or movement.
Words
single

adjective
одиночный
issue

noun
вопрос