One pandering to active baby? (7)
I believe the answer is:
crawler
I believe this clue is a double definition.
'one pandering' is the first definition.
(pandering or sycophantic person)
'active baby?' is the second definition.
(baby crawling around)
'to' is the link.
(Other definitions for crawler that I've seen before include "Sycophant" , "heavy slow-moving vehicle" , "Toady" , "Minion" , "Slow driver" .)