Different flares required by the company out of doors (8)
I believe the answer is:
alfresco
'out of doors' is the definition.
(synonyms)
'different flares required by the company' is the wordplay.
'different' indicates an anagram.
'required by' is a charade indicator (letters next to each other).
'the company' becomes 'co' (abbreviation).
'flares' anagrammed gives 'alfres'.
'alfres'+'co'='ALFRESCO'
(Other definitions for alfresco that I've seen before include "Open-air" , "Outside" , "Out of doors" , "where it's cool" , "Meal eaten in the outdoors" .)