Bear a left, then a right, then reverse (5)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

Reversal of A L [a left] + A OK [a right] I know someone’s going to say it isn’t a bear, but both Collins and Chambers give ‘koala bear’ as an alternative. [And I know that doesn’t make it right but it lets Qaos off.]