Gets ready: salesperson trims nails (8)
I believe the answer is:
prepares
'gets ready' is the definition.
('prepare' can be a synonym of 'get ready')
'salesperson trims nails' is the wordplay.
'salesperson' becomes 'rep' (sales rep).
'trims' becomes 'pares' ('pare' can be a synonym of 'trim').
'nails' indicates putting letters inside (inserted letters are captured or nailed).
'rep' inserted into 'pares' is 'PREPARES'.
(Other definitions for prepares that I've seen before include "Arranges" , "Makes ready in advance" , "Makes or gets ready" .)