Adrian, poorly with temperature, glowing (7)
I believe the answer is:
radiant
'glowing' is the definition.
(I've seen this before)
'adrian poorly with temperature' is the wordplay.
'poorly with' is an anagram indicator (a poor spelling).
'temperature' becomes 't' (abbreviation).
'adrian' anagrammed with 't' gives 'RADIANT'.
(Other definitions for radiant that I've seen before include "Very rich (7.2.2)" , "'Glorious, shining (7)'" , "beaming with joy" , "Brilliant" , "Brightly glowing" .)