Should take about 20 minutes.
Remove the wheel arch liner
Undo the two 10mm nuts inside the wing
Undo the 10mm bolts you can see along the top of the wing and loosen (don't necessarily remove) the two 13mm bonnet hinge bolts.
Undo the bumper on that side and pull it away slightly (remove the whole bumper if you prefer). Also undo the grille part on that side.
Loosen or remove the side skirt
Remove the indicator
Refitting the the reverse of removal