She is at the wheel on the waterway following first dolphins (6)
I believe the answer is:
driver
'she is at the wheel on' is the definition.
I can't judge whether this defines the answer.
'waterway following first dolphins' is the wordplay.
'waterway' becomes 'river' (I've seen this before).
'following' means one lot of letters go next to another.
'first dolphins' becomes 'd' (1st letter of 'dolphins').
'river' put after 'd' is 'DRIVER'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for driver that I've seen before include "See 1 down" , "Golf club for long shots" , "Golf club; chauffeur" , "Motorist - golf club" , "Operator of a motor vehicle" .)