Song of son climbing in trees (5)
I believe the answer is:
psalm
'song' is the definition.
(I've seen this before)
'son climbing in trees' is the wordplay.
I cannot quite understand how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found in the answer.
The remaining letters 'palm' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'of' acts as a link.
Can you help me to learn more?
(Other definitions for psalm that I've seen before include "Sacred poem attributed to David" , "Church hymn" , "Sacred song or hymn" , "Old Testament lyrical poem or prayer" , "OT song" .)