Row in lake, intercepting ship (6)
I believe the answer is:
series
'row' is the definition.
(both can mean a sequence of things)
'lake intercepting ship' is the wordplay.
'lake' becomes 'erie' (Lake Erie is one of the Canadian/US 'Great Lakes').
'intercepting' is an insertion indicator (I've seen this in other clues).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'erie' inserted within 'ss' is 'SERIES'.
'in' acts as a link.
(Other definitions for series that I've seen before include "Cycle" , "Progression or sequence" , "See 8" , "Progression of things" , "Sequence; succession" .)