Texan city (6)
'texan city' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for dallas that I've seen before include "Texas city - old soap" , "oil produced here" , "City where President Kennedy was assassinated" , "City where J. F. Kennedy was assassinated" , "Texan city and TV series of the 80s" .)
'texan city' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for houston that I've seen before include "One of NASA's locations" , "Texan port" , "Texas home of NASA Mission Control" , "Texas city (with a problem?)" , "Tell them we have a problem" .)