Limiting consumption, try and consume pulse (9)
I believe the answer is:
heartbeat
'pulse' is the definition.
(I know that pulse can be written as heartbeat)
'limiting consumption try and consume' is the wordplay.
'limiting' indicates putting letters inside.
'consumption' becomes 'tb' (consumption is a name for TB or tuberculosis).
'try' becomes 'hear' (as in to try someone in court or hear their case).
'and' says to put letters next to each other.
'consume' becomes 'eat' (eating is a kind of consuming).
'hear'+'eat'='heareat'
'tb' inserted within 'heareat' is 'HEARTBEAT'.
(Other definitions for heartbeat that I've seen before include "Animating force" , "Pulse of cardiac origin" , "Circulation noise" , "Essential pulsation" .)