Frank swallows tablet coated with sugar (7)
I believe the answer is:
candied
'frank swallows tablet coated with sugar' is the definition.
I can't judge whether this defines the answer.
'frank swallows tablet coated with' is the wordplay.
'frank' becomes 'cid' (I can't explain this - if you can you should believe this answer much more).
'swallows' is an insertion indicator.
'tablet' becomes 'e' (E can mean ecstasy or an ecstasy tablet).
'coated' is an insertion indicator.
'with' becomes 'and'.
'cid' enclosing 'e' is 'cied'.
'cied' placed around 'and' is 'CANDIED'.
Can you help me to learn more?
(Other definitions for candied that I've seen before include "sweet" , "Sugary" , "preserved" , "Encrusted with sugar" , "Sugared" .)