Race in sea the French try at last (6)
I believe the answer is:
medley
'race' is the definition.
(I've seen this before)
'sea the french try at last' is the wordplay.
'sea' becomes 'med' (abbreviation of Mediterranean).
'the french' becomes 'le' ('the' in French).
'at last' says to take the final letters.
The final letter of 'try' is 'y'.
'med'+'le'+'y'='MEDLEY'
'in' is the link.
(Other definitions for medley that I've seen before include "Piece combining music from various sources" , "Number of tunes put together" , "Compilation of song extracts" , "A series of songs in one composition" , "Piece of music comprising various tunes" .)