How do you change the left headlight bulb on a rover 75?

I think you get at it through a panel in the mud guard under the wheel arch. That is how you do it on the drivers side. Remove the little panel and there is a rubber push fit cover - take it off and the bulbs are held in with a spring clip which is a bit fiddly but not too difficult.

The spring clip came out how do Iget it back in?