Slammer (6)
I believe the answer is:
prison
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slammer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for prison that I've seen before include "Eg, Wormwood Scrubs" , "Penitentiary" , "No rips (anag)" , "porridge" , "Jail" .)