Crossword Genius

Sugary coating unwelcome on aircraft (5)

Ross

I believe the answer is:

icing

I believe this clue is a double definition.

'sugary coating' is the first definition.
(sugary decoration)

'unwelcome on aircraft' is the second definition.
(icing is a problem for an aircraft)

(Other definitions for icing that I've seen before include "Topping in a bag" , "Sweet thing" , "Embellishing the cake" , "Freezing" , "Showing effect of cold snap" .)

I've seen this clue in The Times.
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