Older baseboard radiator isnt flush against wall

Hi all, we have an older baseboard radiator recessed in the wall of the bathroom and it looks like its leaning out a little, not sure why. Any attempts to push it back in haven't worked, is there any way to effectively get it back into position or should this just be replaced?

I would also note its loud and clanks when the heat is turned all the way up. Other radiators in house heat up normally.