Puts some flags down (5)
I believe the answer is:
paves
'puts some flags down' is the definition.
I can't judge whether this definition defines the answer.
'puts some flags down' is the wordplay.
'some' indicates taking the first letters.
'flags down' becomes 'aves' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The initial letter of 'puts' is 'p'.
'p'+'aves'='PAVES'
Can you help me to learn more?
(Other definitions for paves that I've seen before include "Covers road or path with hard surface" , "Vespa (anag.)" .)