Potent (6)
'potent' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for strong that I've seen before include "Physically powerful - feel 1 Across" , "is excelling" , "Decisive - spicy - bright - tough" , "Mighty, powerful" , "Intense" .)
'potent' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for powerful that I've seen before include "Having a strong effect" , "Potent, forceful" , "with lots of horses" , "Dominant" , "Like a potentate" .)