Honey bee caught in inlet (4)
I believe the answer is:
baby
'honey' is the definition.
(I've seen this before)
'bee caught in inlet' is the wordplay.
'bee' becomes 'b'.
'caught in' indicates putting letters inside.
'inlet' becomes 'bay' (I've seen this before).
'b' inserted inside 'bay' is 'BABY'.
(Other definitions for baby that I've seen before include "-- Oil; -- boom" , "about to howl?" , "Infancy" , "Girlfriend" , "Small child" .)