Lebanon's to prioritise housing constantly (3-4)
I believe the answer is:
non-stop
'constantly' is the definition.
'lebanon's to prioritise housing' is the wordplay.
'housing' indicates a hidden word (part of the clue houses the answer).
'NON-STOP' can be found hidden inside 'lebanons to prioritise'.
(Other definitions for non-stop that I've seen before include "Continuous" , "Unceasing" , "continuously" , "Going straight from A to B" , "Round-the-clock" .)