Faces of perennially upbeat soap sellers one’s often seen in Boots? (4)
I believe the answer is:
puss
'one's often seen in boots?' is the definition.
I can't tell whether this definition defines the answer.
'faces of perennially upbeat soap sellers' is the wordplay.
'faces of' indicates taking the first letters (I've seen 'face of' mean this).
The initial letters of 'perennially upbeat soap sellers' is 'PUSS'.
Can you help me to learn more?
(Other definitions for puss that I've seen before include "clock" , "mug" , "Feline" , "Pet" , "Moggie" .)