Stronghold (6)
'stronghold' is the definition.
(I know that citadel is a type of stronghold)
This is all the clue.
(Other definitions for citadel that I've seen before include "Bastion" , "Keep - castle" , "Stronghold (of the Salvation Army?)" , "Fort, fastness" , "Stronghold into which people could go for shelter during a battle" .)
'stronghold' is the definition.
(bastion is a kind of stronghold)
This is all the clue.
(Other definitions for bastion that I've seen before include "that's fortified" , "A projecting fortification to increase angle of fire" , "Projecting part of a fortification" , "'Stronghold, citadel (7)'" , "Fortified place near hostile territory" .)
'stronghold' is the definition.
(I know that redoubt is a type of stronghold)
This is the entire clue.
(Other definitions for redoubt that I've seen before include "Entrenched stronghold" , "Fortified stronghold" , "Defensive outwork" , "In final retreat" , "Tube rod (anag) - fortification" .)
'stronghold' is the definition.
(I know that fortress is a type of citadel)
This is all the clue.
(Other definitions for fortress that I've seen before include "Military stronghold" , "Protective structure" , "Fortified defensive structure" , "Perhaps keep" , "Strong point" .)
'stronghold' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for fastness that I've seen before include "speed?" , "Strongly fortified defensive place" , "Keep" , "Stronghold or fortress" , "quality of not fading" .)
'stronghold' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fort that I've seen before include "Citadel" , "Military post in the old West" , "& 4 Down Army post in USA" , "Strategic position" , "castle, perhaps" .)
'stronghold' is the definition.
(I know that castle is a type of citadel)
This is the entire clue.
(Other definitions for castle that I've seen before include "man of 1d [ADVENTURE]" , "''An Englishman's home is his . . .''" , "Fortress; rook" , "a piece in the corner" , "splendid house" .)