Restrictively prevent the chicken crossing the road? (3,2)
I believe the answer is:
hem in
'restrictively prevent' is the definition.
I can't judge whether this definition defines the answer.
'chicken crossing the road?' is the wordplay.
'chicken' becomes 'hen' (hen is a kind of chicken).
'crossing' means one lot of letters goes inside another.
'the road?' becomes 'MI' (resembles M1 motorway).
'hen' placed around 'mi' is 'HEM IN'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for hem in that I've seen before include "Border" , "Encircle" , "Confine" .)