Way to encourage dealing with swimmer (8)
I believe the answer is:
sturgeon
'swimmer' is the definition.
(type of fish)
'way to encourage dealing with' is the wordplay.
'way' becomes 'st' (abbreviation for street).
'to encourage' becomes 'urge' (I've seen this before).
'dealing with' becomes 'on'.
'st'+'urge'+'on'='STURGEON'
(Other definitions for sturgeon that I've seen before include "Caviare-yielding fish" , "The fish that yields caviar" , "Fish that yields caviare" , "producer of expensive eggs" , "provider of delicacy?" .)