US border development the reverse of Liberal legislation (4)
I believe the answer is:
wall
'us border development' is the definition.
I can't tell whether this defines the answer.
'reverse of liberal legislation' is the wordplay.
'reverse of' shows that the letters should be reversed in order.
'liberal' becomes 'l' (abbreviation).
'legislation' becomes 'law' (I've seen this in another clue).
'l'+'law'='llaw'
'llaw' written backwards gives 'WALL'.
'the' is the link.
Can you help me to learn more?
(Other definitions for wall that I've seen before include "Vertical divider or support" , "Barrier, internal or external" , "mechanical part" , "See 14" , "Solid barrier" .)