Deadlock; standstill (7)
I believe the answer is:
impasse
I believe this is a double definition.
'deadlock' is the first definition.
(I know that deadlock can be written as impasse)
'standstill' is the second definition.
(I know that standstill can be written as impasse)
(Other definitions for impasse that I've seen before include "Dead end" , "hopeless situation?" , "Situation in which progress is impossible" , "No progress is possible in this type of situation" , "Inescapable perdicament, dilemma" .)