Lose minutes approaching Hebridean island (6)
I believe the answer is:
mislay
'lose' is the definition.
(I know that mislay is a more specific form of the action lose)
'minutes approaching hebridean island' is the wordplay.
'minutes' becomes 'm' (common abbreviation).
'approaching' says to put letters next to each other.
'hebridean island' becomes 'islay' (I've seen this before).
'm'+'islay'='MISLAY'
(Other definitions for mislay that I've seen before include "Put (something) where it can't be found" , "Temporarily not find" , "Be unable to find" , "Lose (an item)" , "Set in wrong location" .)