Pushcarts for time travel? Perhaps, yes! (8)
I believe the answer is:
trolleys
'pushcarts' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe there's an association between them I don't understand?
'time travel? perhaps yes' is the wordplay.
'time' becomes 't' (abbreviation).
'travel?' becomes 'roll' (rolling is a kind of travelling).
'perhaps' is an anagram indicator.
'yes' is an anagram of 'eys'.
't'+'roll'+'eys'='TROLLEYS'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for trolleys that I've seen before include "Baskets or small tables on wheels" , "Vehicles" , "Supermarket carts" , "They're to be found in hospitals and supermarkets" , "Handcarts that hold groceries" .)