Physical power (5)
'physical power' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for strength that I've seen before include "A good quality; might" , "Toughness, force" , "Physical potency" , "stamina" , "Force, might, potency" .)
'physical power' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for force that I've seen before include "Lean on" , "Violence" , "Physical coercion" , "Compulsion - police" , "Power; army" .)