[marionette]

There was a series that ran in a British girls' comic in the 1960's and possibly early 70s about a teacher who moonlighted as a wrestler. I think the wrestler may have been tiger-themed but I'm not sure on that. The story revolved around a schoolgirl who discovers the teacher's secret and thereafter helps protect it.

I can't remember the series title or the comic it was in, but I do recall that at least one story also appeared in a picture library edition.

[paw broon]

Well, that's a stumper.  If we knew which title it was in, that would narrow it down to a publisher - fewer pocket libraries to check. CB+ doesn't hold material from those dates. But there are so many issues of a lot of the pocket libraries that even if we had them, it'd take ages to check. With luck, someone will have a clue about it. 

[marionette]

The series in question is Grappling Gertie. She seems to have appeared in both Bunty and Mandy picture libraries, but I've yet to track down the main series. I have a notion it was in Mandy but I have yet to be able to verify that.