Hi Laura
I fear I could have misled Graudian in the previous post to which you refer.
While there are 10 thematic clues which are 'beheaded' 5 of them need two things doing to them prior to entry into the grid.
Where some treated solutions are merely beheaded i.e 14 Holysee (enter as Olysee) some are reversed for entry i.e 23a Undergo loses it's head and is reversed ogredn
Come back if this doesn't make sense.