Scrap odd parts of tours on isle to avoid current (6)

I believe the answer is:

tussle

'scrap' is the definition.
(I know that tussle is a type of scrap)

I can't explain the remainder of the clue.

(Other definitions for tussle that I've seen before include "Struggle like wrestling bout" , "Go at it" , "Wrestle, scuffle" , "Sharp struggle" , "Vigorous struggle or scuffle" .)

I've seen this clue in The Times.

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