Enticement to be in around one (4)
I believe the answer is:
bait
'enticement' is the definition.
(bait is a kind of enticement)
'be in around one' is the wordplay.
'be in' becomes 'bat' (the person batting is 'in' in cricket).
'around' indicates putting letters inside.
'one' becomes 'I' (Roman numeral).
'bat' going around 'i' is 'BAIT'.
'to' acts as a link.
(Other definitions for bait that I've seen before include "Lure; deliberately taunt" , "Food used as lure" , "Food to entice fish; taunt" , "N in radio comms" , "Lure; tease" .)