Suggestion in meeting, finally present (5)
I believe the answer is:
ghost
'suggestion' is the definition.
(I've seen this before)
'meeting finally present' is the wordplay.
'finally' indicates one should take the final letters.
'present' becomes 'host' (I've seen this before).
The last letter of 'meeting' is 'g'.
'g'+'host'='GHOST'
'in' acts as a link.
(Other definitions for ghost that I've seen before include "Visible manifestation of a dead person" , "Hamlet's spectral father" , "Spirit, spectre" , "Spook, spectre" , "author for someone" .)