Crossword Genius

Ached badly in cold season? Get a jacket (11)

Ross

I believe the answer is:

'a jacket' is the definition.
(windcheater is a kind of jacket)

'ached badly in cold season?' is the wordplay.
'badly' indicates anagramming the letters.
'in' indicates putting letters inside.
'cold season?' becomes 'winter' (I've seen this before).
'ached' is an anagram of 'dchea'.
'dchea' inserted within 'winter' is 'WINDCHEATER'.

'get' acts as a link.

(Other definitions for windcheater that I've seen before include "warm clothing", "jacket".)

I've seen this clue in The Telegraph.