High style is best at speed (7)
I believe the answer is:
topknot
'high style' is the definition.
The definition and answer can be both animals as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'best at speed' is the wordplay.
'best' becomes 'top' (top can mean the very best).
'at' says to put letters next to each other.
'speed' becomes 'knot' (knot is a nautical measure of speed).
'top'+'knot'='TOPKNOT'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for topknot that I've seen before include "Crest - tuft of hair" , "Crest of hair or ribbon on crown of head" , "Decorative ribbon worn on top of head" , "Decoration on head" , "Fish" .)