Crossword Genius

Very serious item in the post about it’s recalled (7)

Ross

I believe the answer is:

drastic

'very serious' is the definition.
(drastic means very severe or serious)

'item in the post about it's recalled' is the wordplay.
'item in the post' becomes 'card' (eg a birthday card).
'about' means one lot of letters goes inside another.
'recalled' says the letters should be written in reverse.
'card' placed around 'its' is 'citsard'.
'citsard' back-to-front is 'DRASTIC'.

(Other definitions for drastic that I've seen before include "Harsh, severe" , "Extremely severe" , "Unsparing" , "Grave" , "Uncompromising" .)

I've seen this clue in The Times.
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