In Tobago, having left land, sailors notice strong wind (7)
I believe the answer is:
tornado
'strong wind' is the definition.
(I've seen this before)
'in tobago having left land sailors notice' is the wordplay.
I cannot really understand how this works, but
'sailors' could be 'rn' (Royal Navy) and 'rn' is located in the answer.
'notice' could be 'ad' (both can mean an advertisement) and 'ad' is located in the answer.
The remaining letters 'too' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tornado that I've seen before include "Tempest'" , "It's a big blow" , "Hurricane" , "Violent rotating windstorm" , "squall" .)