Playing card expert on vacation run to ground (6)
I believe the answer is:
traced
'run to ground' is the definition.
I can't judge whether this defines the answer.
'playing card expert on vacation' is the wordplay.
'playing' indicates an anagram.
'on vacation' means to remove the middle letters (after the inside letters have vacated the word).
'expert' with its middle removed is 'et'.
'card'+'et'='cardet'
'cardet' anagrammed gives 'TRACED'.
Can you help me to learn more?
(Other definitions for traced that I've seen before include "Copied; outlined" , "Discovered by examining pieces of evidence" , "Located" , "Followed by discovering marks or clues" , "Found by investigation" .)