Loathsome sailor almost exhausted entertaining love bird (10)
I believe the answer is:
abominable
'loathsome' is the definition.
(I've seen this in another clue)
'sailor almost exhausted entertaining love bird' is the wordplay.
I cannot really see how this works, but
'sailor' could be 'ab' (abbreviation for able seaman) and 'ab' is present in the answer.
'love' could be 'o' (love means zero in tennis) and 'o' is found within the answer.
'bird' could be 'mina' (mina is a kind of bird) and 'mina' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for abominable that I've seen before include "Very bad, terrible" , "Odious" , "Hateful" , "Causing moral revulsion" , "Atrocious" .)