Your hand is:
Your options are:
1: 2♣ 10+ 4+♣, not GF
2: 3♣ GF 5+ good ♣, at least Qxxx ♠ or the old fashioned one suited club rock crusher
In either case, partner will bid the minimum number of diamonds next guaranteeing at least 5 spades and 4 diamonds in each case.
If you bid 2♣, the next hand doubles 2♦ your options basically are:
2♥ 4th suit not FG but in this situation almost is as pass will remove most of the hands you don't want to force on
Redouble big hand not necessarily any great diamond holding, penalty orientated initially
Blackwood
If you bid 3♣, your options are:
3N to show the single suited type, but not a suit you want to play a slam in opposite a small singleton, this hand is fairly minimum for this hand type
3♠ to show it as the fit type
3♥ cue and fit type
Continuations to follow
ALso interested how other people bid this in other systems that are not 2/1 GF