Belting delivered by officer guarding British base (9)
I believe the answer is:
admirable
'belting delivered' is the definition.
I can't judge whether this defines the answer.
'officer guarding british base' is the wordplay.
'officer' becomes 'admiral' (admiral is a kind of officer).
'guarding' is an insertion indicator (inserted letters are protected or guarded).
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'base' becomes 'e' (Euler's number - base of natural logarithms).
'admiral' enclosing 'b' is 'admirabl'.
'admirabl'+'e'='ADMIRABLE'
'by' is the link.
Can you help me to learn more?
(Other definitions for admirable that I've seen before include "Outstanding" , "Splendid" , "Praiseworthy" , "Commendable" , "Deserving of praise" .)