Crossword Genius

What happened during a transport strike in Algeria (4)

Ross

I believe the answer is:

oran

I'm a little stuck... Click here to teach me about this clue!

Here is my best explanation:

'in algeria' is the definition.
('Oran' is part of 'algeria')

'what happened during a transport strike' is the wordplay.
I cannot really understand how this works, but
'a' could be 'an' and 'an' is located in the answer.
The remaining letters 'or' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

This clue was last seen in The Globe and Mail