Dash to get queen a toy (7)
I believe the answer is:
scooter
'a toy' is the definition.
(I've seen this before)
'dash to get queen' is the wordplay.
'dash' becomes 'scoot' (synonyms).
'to get queen' becomes 'er' (I am not sure about this - if you are sure you should believe this answer much more).
'scoot'+'er'='SCOOTER'
Can you help me to learn more?
(Other definitions for scooter that I've seen before include "Light motorcycle" , "Small motorcycle" , "one makes off quickly" , "Traveller" , "it may need physical boost" .)