Lacking aesthetic judgement in how food may appear after Covid (9)
I believe the answer is:
tasteless
This clue is a double definition.
'lacking aesthetic judgement' is the first definition.
(having poor taste)
'how food may appear after covid' is the second definition.
(covid-19 can affect one's sense of smell)
'in' is the link.
(Other definitions for tasteless that I've seen before include "Lacking flavour or ability to appreciate the beautiful" , "Unseemly" , "Insipid - vulgar" , "Lacking in aesthetic judgement" , "improper" .)