Caught large snake in grip (5)
I believe the answer is:
clasp
'grip' is the definition.
(I know that grip can be written as clasp)
'caught large snake' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'large' becomes 'L' (eg in clothes sizes).
'snake' becomes 'asp' (asp is a kind of snake).
'c'+'l'+'asp'='CLASP'
'in' acts as a link.
(Other definitions for clasp that I've seen before include "Handshake or fastening device" , "bosom" , "Grip firmly" , "Close hands round" , "Clutch" .)