I wish to take off clothes running on island (2,4)
I believe the answer is:
if only
'i wish' is the definition.
(I've seen this before)
'take off clothes running on island' is the wordplay.
I cannot really see how this works, but
'running' could be 'on' (eg when a machine is running it is on) and 'on' is found within the answer.
'island' could be 'i' (geographical abbreviation) and 'i' is found within the answer.
'take off' could be 'fly' (I've seen this in another clue) and 'fly' is found in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'to' is the link.
Can you help me to learn more?
(Other definitions for if only that I've seen before include "in my dreams" , "Would that" , "expression of wish" , "I wish that could be provided just after" .)