I will shortly be unwell (3)

I believe the answer is:

I believe this is a double definition.

'i will shortly' is the first definition.
(abbreviation; 'shortly' suggests a short form)

'unwell' is the second definition.
(similar in meaning)

'be' is the link.

(Other definitions for ill that I've seen before include "Dicky" , "state of America" , "Not well, sick" , "Groggy" , "Where to find Chicago" .)

I've seen this clue in The Irish Independent and The Sun.

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