Servicemen hop off to find general (13)
I believe the answer is:
comprehensive
'general' is the definition.
('comprehensive' can be similar in meaning to 'general')
'servicemen hop off' is the wordplay.
'off' is an anagram indicator.
'servicemen'+'hop'='servicemenhop'
'servicemenhop' anagrammed gives 'COMPREHENSIVE'.
'to find' acts as a link.
(Other definitions for comprehensive that I've seen before include "All-embracing" , "Hence improves (anag.)" , "Of very wide scope" , "school" , "All-inclusive" .)