Picture Pattern help

I have never worked from a picture pattern before. I've been writing it out round by round but am having trouble understanding some of it. It's a UK pattern so I've converted stitches to US. In round 12, 13, 14 the pattern shows a T with no cross. This is not in the pattern key so I'm guessing it's a hdc but am not sure. In rnd 14 I think there are clusters maybe trcl? Any help would be appreciated. I would really like to make this.

Pattern Link: http://www.coatscrafts.co.uk/NR/rdonlyres/B7B10681-3952-4C4C-BF36-BC1EE1...

Forums: 

It seems that the T stitch is probably a hdc. The clusters though appear to be doubles on either side of quad trebles.

I would just forge ahead and see what fits well when I reached those areas. Sometimes I'll switch out one stitch for another because of the fit anyway.