He caught little jerk being frenzied (6)
I believe the answer is:
hectic
'frenzied' is the definition.
(I've seen this before)
'he caught little jerk' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'little jerk' becomes 'tic' (I've seen this in another clue).
'he'+'c'+'tic'='HECTIC'
'being' is the link.
(Other definitions for hectic that I've seen before include "Frantically active" , "Marked by intense activity" , "'Rushed, madly busy (6)'" , "Frenzied" , "Feverishly busy" .)