Control station in two stops (10)
I believe the answer is:
checkpoint
'control station' is the definition.
(I've seen this before)
'two stops' is the wordplay.
'two stops' means two replacements for 'stop'.
'stop' becomes 'check' (check is a kind of stop).
'stop' becomes 'point' (synonyms).
'check'+'point'='CHECKPOINT'
'in' acts as a link.
(Other definitions for checkpoint that I've seen before include "Control station" , "Where on inspection one may cross" , "border post" , "Charlie, perhaps" , "place at frontier?" .)