Confused bale is skilful (4)
I believe the answer is:
Here is my best explanation:
'skilful' is the definition.
(I've seen this before)
'confused bale' is the subsidiary indication.
'confused' is an anagram indicator.
'bale' with letters rearranged gives 'able'.
'is' is the link.
(Other definitions for able that I've seen before include "Competent and fit, like sailor", "Capable or proficient", "Competent as seaman may be", "As capable as a mariner", "Clever skilful", "Skilled", "With the power (to do something)", "displaying skill", "Having the necessary capacity (to do something)" and "Adept".)