st 4317

[balliali]

Hi, I'm new to cryptics, going reasonably well on this one but stuck on quite a few. Help needed with these please, and thanks.

3a. Excess fat in the motoring business (5.5.)
It seems to end with S

21a. Vessel for hairdresser (7)
Think the third letter is I

[tyrepill]

3a Spare tyres....21a Clipper

[balliali]

Thank you so much, enjoyed that answer to 3a. Very clever. Will keep trying and some week I will get one crossword finished, thats as much as I want to do. Not interested in competitive way.