Tablet dropped by sailor at the French fair (9)
I believe the answer is:
equitable
'fair' is the definition.
(synonyms)
'tablet dropped by sailor at the french' is the wordplay.
'tablet' becomes 'e' (E can mean ecstasy or an ecstasy tablet).
'dropped by' becomes 'quit' (I can't explain this - if you can you should give a lot more credence to this answer).
'sailor' becomes 'ab' (abbreviation for able seaman).
'at' says to put letters next to each other.
'the french' becomes 'le' ('the' in French).
'e'+'quit'+'ab'+'le'='EQUITABLE'
Can you help me to learn more?
(Other definitions for equitable that I've seen before include "Fair, impartial" , "Fair to all parties" , "Even-handed" .)