Straighten and feel the sartorial excellence (5,5)
I believe the answer is:
dress sense
'sartorial excellence' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'straighten and feel' is the wordplay.
'straighten' becomes 'dress' (dress can mean to tidy or straighten one's hair).
'and' is a charade indicator (letters next to each other).
'feel' becomes 'sense' (synonyms).
'dress'+'sense'='DRESS SENSE'
'the' is the link.
Can you help me to learn more?
(Other definitions for dress sense that I've seen before include "style" , "Good taste in clothes" , "What fashion icons have" , "Instinct for clothes" , "Good instinct for clothing" .)