Capable
'capable' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for efficient that I've seen before include "working economically at speed" , "Effective, competent" , "Producing results with little waste of effort" , "Effective in doing what is required" , "Businesslike" .)
'capable' is the definition.
(associated in meaning)
This is the entire clue.
(Other definitions for competent that I've seen before include "Qualified" , "Able (to do something)" , "Efficient, capable" , "Teen drink" , ""not bad"" .)
'capable' is the definition.
(synonyms)
This is all the clue.
(Other definitions for able that I've seen before include "displaying skill" , "Competent, capable" , "Efficient" , "Having the power, skill or means (to do something)" , "Having great proficiency or intelligence" .)
'capable' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for adept that I've seen before include "capable" , "skilled performer" , "Very skilled person" , "clever" , "Very skilled/proficient" .)
'capable' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for fit that I've seen before include "Adequate" , "bout?" , "Suitable; healthy" , "Equip" , "Certified OK by the doctor" .)
'capable' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for apt that I've seen before include "Suitable, appropriate" , "Fit, suitable" , "Having a tendency" , "Relevant" , "Liable" .)