Tending to sit son beside garden, sits near rocks (13)
I believe the answer is:
'tending to sit' is the definition.
I can't judge whether this defines the answer.
'son beside garden sits near rocks' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'beside' says to put letters next to each other (I've seen this in other clues).
'garden' becomes 'eden' (I've seen this in another clue).
'rocks' is an anagram indicator.
'sitsnear' with letters rearranged gives 'tariness'.
Can you help me to learn more?