gistfile1.clj

(let [translations {"issue_1" "Issue One"
                    "issue_2" "Issue Two"
                    "issue_3" "Issue Three"
                    "issue_4" "Issue Four"}
      items [{:priority "high",:issues ["issue_1" "issue_2"]}
             {:priority "low", :issues ["issue_3" "issue_4"]}]]
  (map (fn [m] (apply merge m))
       (map (fn [{:keys [priority issues]}]
              (map (fn [issue]
                     {(get translations issue), {:priority priority,
                                                 :selector issue}})
                   issues))
            items)))