Silly fellow officer commanding sea crossing (8)

I believe the answer is:

farcical

I'm a little stuck... Click here to teach me more about this clue!

'silly' is the definition.
(thesaurus)

'fellow officer commanding sea crossing' is the wordplay.
'fellow' becomes 'F' (abbreviation - of a society etc.).
'officer commanding' becomes 'cic' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sea' becomes 'aral' (I've seen this before).
'crossing' is an insertion indicator (to cross can mean to go over or around).
'cic' going inside 'aral' is 'arcical'.
'f'+'arcical'='FARCICAL'

Can you help me to learn more?

(Other definitions for farcical that I've seen before include "Utterly ridiculous like bad comedy" , "Racial FC is ridiculous" , "Really ridiculous as in low-brow comedy" , "Completely ludicrous." , "Quite ridiculous, ludicrous" .)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.