Pitiful, heartless, corrupt? Here’s a boost (6)
I believe the answer is:
uplift
'a boost' is the definition.
(thesaurus)
'pitiful heartless corrupt?' is the wordplay.
'heartless' suggests removing the centre.
'corrupt?' is an anagram indicator (I've seen 'corrupt' mean this).
'pitiful' with its centre removed is 'pitful'.
'pitful' with letters rearranged gives 'UPLIFT'.
'here's' is the link.
(Other definitions for uplift that I've seen before include "Boost" , "Increase; moral elevation" , "Spiritual elevation" , "Inspire or raise" , "Elevation (of the spirit)" .)