White coat's alluring with ENT at first (5)
I believe the answer is:
icing
'white coat's' is the definition.
(I've seen this before)
'alluring with ent at first' is the wordplay.
I cannot really see how this works, but
'at' could be 'in' and 'in' is present in the answer.
'first' could be 'i' (I in Roman numerals eg Elizabeth I) and 'i' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for icing that I've seen before include "Sugary topping" , "Embellishing the cake" , "Decorative cake coating" , "Frosty coating" , "Decorating (a cake)" .)