Fortification (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fortification</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that bastion is a type of fortification)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bastion that I've seen before include "'Stronghold, citadel (7)'" , "Projecting part of a fortification" , "staunch supporter" , "Fortified place near hostile territory" , "Obtains in fortified place or stronghold" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fortification</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for redoubt that I've seen before include "Keep losing confidence in" , "fortress" , "Obtrude in kind of military fieldwork" , "temporary defence work" , "Military defence-work" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fortification</span>' is the definition.<br/ ><span class="explanation-format__explanation">(bulwark is a kind of fortification)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for bulwark that I've seen before include "defence" , "Defensive wall" , "Buttress" , "Fortification - side of ship above deck" , "Rampart" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fortification</span>' is the definition.<br/ ><span class="explanation-format__explanation">(battlement is a kind of fortification)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for battlement that I've seen before include "Top of a fortified wall" , "Crenellation" , "parapet" , "fortification" .)