Big dipper (6,7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">big dipper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for roller coaster that I've seen before include "Fairground ride" , "Series of emotional swings" , "scenic railway" , "Big dipper" , "entertainment at fair" .)
(Other definitions for ladle that I've seen before include "Soup-server" , "give out" , "Large deep spoon for serving soup" , "Scoop" , "Large spoon with long handle" .)