Gun dogs - two of them (3-3)
I believe the answer is:
pom-pom
'gun' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for pom-pom that I've seen before include "Ball of tufted wool, on a hat perhaps" , "Fluffy ball - type of gun" , "Decorative ball of tufted wool" , "Variety of dahlia" , "Tightly-clustered flower; garment decoration" .)