One caught in grasp of tender policeman (7)
I believe the answer is:
officer
'policeman' is the definition.
('officer' can be a synonym of 'policeman')
'one caught in grasp of tender' is the wordplay.
'one' becomes 'i' (Roman numeral).
'caught' becomes 'c' (cricket abbreviation).
'in grasp of' is an insertion indicator.
'tender' becomes 'offer' ('offer' can be a synonym of 'tender'**).
'i'+'c'='ic'
'ic' going within 'offer' is 'OFFICER'.
(Other definitions for officer that I've seen before include "Commissioned rank" , "Policeman/policewoman" , "One with commission" , "Person with commission in armed services" , "Commissioned member of armed forces" .)