Add the following to relevant files to get react-select with reagent

core.cljs

(ns core
    (:require [cljsjs.react-select]))

(defn my-select []
  [:> js/Select {:name "Select"
                          :value "Tom"
                          :on-change #(println "Change ! : " %)
                          :filter-options false
                          :options [{:value "Tom" :label "Tommy"}
                                    {:value "Tom2" :label "Tommy2"}
                                    {:value "Tom3" :label "Tommy3"}]}])

index.html

<link href="css/react-select.min.css" rel="stylesheet" type="text/css">

project.clj

; A better select field
[cljsjs/react-select "1.0.0-beta14-0" :exclusions [cljsjs/react]]