Creeps first to eye doges dropping round (5)
I believe the answer is:
edges
'creeps' is the definition.
(I've seen this in another clue)
'first to eye doges dropping round' is the wordplay.
'first to' suggests taking the first letters.
'dropping' becomes 'seg' (I can't explain this - if you can you should believe this answer much more).
'round' shows that the letters should be reversed in order.
The first letters of 'eye doges' is 'ed'.
'seg' backwards is 'ges'.
'ed'+'ges'='EDGES'
Can you help me to learn more?
(Other definitions for edges that I've seen before include "Des, e.g. (anag.)" , "Bounds" , "Fringes" , "Outer limits" , "They're used for cutting" .)