Fish on to the table: way to go! (10)
I believe the answer is:
skateboard
'way to go' is the definition.
(skateboard is a method of transport)
'fish on to the table' is the wordplay.
'fish' becomes 'skate' (skate is a kind of fish).
'on' says to put letters next to each other.
'to the table' becomes 'board' (board is a kind of table).
'skate'+'board'='SKATEBOARD'
(Other definitions for skateboard that I've seen before include "Young person's wheeled transport" , "Transporter used for hot dog" , "Means of travel on rollers" , "Youth transport" , "Small wheeled platform on which person can scoot and ride" .)