Eat dessert to start with? This has a nice smell (10)
I believe the answer is:
aftershave
'has a nice smell' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'eat dessert to start with?' is the wordplay.
'eat' becomes 'have' (I've seen this in another clue).
'dessert' becomes 'afters' (afters can mean a dessert course).
'to start with?' says to put letters next to each other.
'have' put after 'afters' is 'AFTERSHAVE'.
'this' acts as a link.
Can you help me to learn more?
(Other definitions for aftershave that I've seen before include "liquid splashed in bathroom" , "Dad's expected present?" , "soothing application" , "styptic lotion" , "I'm slapped on the face" .)