Country dacha: it impresses on the inside (5)
I believe the answer is:
haiti
'country' is the definition.
(Haiti is an example)
'dacha it impresses on the inside' is the wordplay.
'the inside' indicates the answer is hidden within the clue.
'HAITI' is hidden within 'dacha it impresses on'.
(Other definitions for haiti that I've seen before include "West Indies republic" , "Island of West Indies" , "Caribbean isle" , "Caribbean state" , "Country in W Indies, capital Port-au-Prince" .)