Make longer support for a leaflet (8)
I believe the answer is:
protract
'make longer' is the definition.
(protracting is a kind of making longer)
'for a leaflet' is the wordplay.
'for' becomes 'pro' (as in being 'pro' something).
'a leaflet' becomes 'tract' (I've seen this in other clues).
'pro'+'tract'='PROTRACT'
'support' is the link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for protract that I've seen before include "Extend length" , "Drag out at length" , "Stretch out" , "Draw out, prolong" , "Draw out, lengthen the time" .)