Have a meal in 'ot weather (3)
I believe the answer is:
eat
'have a meal' is the definition.
(I've seen this before)
'in 'ot weather' is the wordplay.
'in' says the answer is hidden in the clue.
'EAT' is hidden in the letters of 'ot weather'.
(Other definitions for eat that I've seen before include "Have 23d [MEAL]" , "Partake of" , "get stuck in" , "to do etching?" , "Scoff" .)