The problem you've got here is that you want the solver to use the letters AIR 'as is' (albeit reversed), and therefore the word 'the' cannot simply be ignored.
If you were to use a noun synonym for air, say 'mood', then it would be acceptable to add the indefinite article, as solvers will expect that 'a mood' could translate into 'air' (and not necessarily 'an air'). So "Simpson's in a mood, coming back for wine" would be ok. That said, some purists would prefer not to see a 'disappearing' article, favouring "Simpson's in mood, coming back for wine".
If you want to mislead the solver a little, then a synonym for the verb 'to air' will look like a noun in the surface reading of the clue, eg "Simpson in show coming back for wine" and perhaps also suggests Homer rather than OJ. Setters are always on the lookout for such opportunities for misdirection.