Duck, say, knocked over by eccentric cycling (5)
I believe the answer is:
dodge
'duck' is the definition.
(synonyms)
'say knocked over by eccentric cycling' is the wordplay.
'say' becomes 'eg' (both can mean for example).
'knocked over' says the letters should be written backwards.
'by' means one lot of letters go next to another.
'eccentric cycling' becomes 'dod' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'eg' backwards is 'ge'.
'ge' after 'dod' is 'DODGE'.
Can you help me to learn more?
(Other definitions for dodge that I've seen before include "Avoid - Kansas city" , "Avoid or evade by bodily movement" , "Avoid cunningly" , "Step sideways to evade" , "Avoid with subterfuge" .)