Raising small change gives rises in liquidity? (5)
I believe the answer is:
tides
'rises in liquidity?' is the definition.
(the tide rises and falls in the sea, a liquid)
'raising small change' is the wordplay.
'raising' says the letters should be written in reverse.
'small' becomes 's' (abbreviation - e.g. clothes size).
'change' becomes 'edit' (editing is a kind of changing).
's'+'edit'='sedit'
'sedit' written backwards gives 'TIDES'.
'gives' acts as a link.
(Other definitions for tides that I've seen before include "Lunar ocean movements" , "Sited (anag.)" , "Those fluctuating" , "They ebb and flow" , "Rises and falls, nautically" .)