Look to the southeast at sunrise, perhaps, for this layer of gold. (4)
I believe the answer is:
seam
'sunrise perhaps for this layer of gold' is the definition.
'seam' can be an answer for 'layer' (seam is a kind of layer). I'm unsure of the rest of the definition.
'look to the southeast' is the wordplay.
'look' becomes 'am' (I can't justify this - if you can you should believe this answer much more).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'the southeast' becomes 'SE' ('SE' can be a synonym of 'southeast').
'am' after 'se' is 'SEAM'.
'at' is the link.
Can you help me to learn more?
(Other definitions for seam that I've seen before include "A stitched join in a garment" , "The line where two edges are stitched together" , "Join in material - layer of coal" , "Join - thin layer" , "Joint between two edges" .)