Sack irrational salesperson lying about tattoo artist (8)
I believe the answer is:
bagpiper
'tattoo artist' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'sack irrational salesperson lying about' is the wordplay.
'sack' becomes 'bag' (I've seen this before).
'irrational' becomes 'pi' (an irrational number).
'salesperson lying' becomes 'rep' (I am not sure about this - if you are sure you should believe this answer much more).
'about' says the letters should be written in reverse.
'rep' backwards is 'per'.
'bag'+'pi'+'per'='BAGPIPER'
Can you help me to learn more?
(Other definitions for bagpiper that I've seen before include "One blows out air" , "Scots musician" , "Wind musician" , "Pibroch player" , "Player of traditional Scottish musical instrument" .)